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Finding the Fourth Proportional to 6,879.19, 9,501.09 and 4,637.20

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Solution

The fourth proportional to 6,879.19, 9,501.09 and 4,637.20 is: 6,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.19 : 9,501.09 = 4,637.20 : x
  2. Step 2: Convert to fraction form
    6,879.19/9,501.09 = 4,637.20/x
  3. Step 3: Cross multiply
    6,879.19x = 9,501.09 × 4,637.20
  4. Step 4: Simplify right side
    6,879.19x = 44,058,454.55
  5. Step 5: Solve for x
    x = 44,058,454.55/6,879.19
  6. Step 6: Final answer
    x = 6,404.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.