Home / 4,670.76-6,445.20-2,877.96

Finding the Fourth Proportional to 4,670.76, 6,445.20 and 2,877.96

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Solution

The fourth proportional to 4,670.76, 6,445.20 and 2,877.96 is: 3,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,670.76 : 6,445.20 = 2,877.96 : x
  2. Step 2: Convert to fraction form
    4,670.76/6,445.20 = 2,877.96/x
  3. Step 3: Cross multiply
    4,670.76x = 6,445.20 × 2,877.96
  4. Step 4: Simplify right side
    4,670.76x = 18,549,027.79
  5. Step 5: Solve for x
    x = 18,549,027.79/4,670.76
  6. Step 6: Final answer
    x = 3,971.31

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Half scale
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Double scale
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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.