Home / 6,261.19-8,640.42-3,609.10

Finding the Fourth Proportional to 6,261.19, 8,640.42 and 3,609.10

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Solution

The fourth proportional to 6,261.19, 8,640.42 and 3,609.10 is: 4,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.19 : 8,640.42 = 3,609.10 : x
  2. Step 2: Convert to fraction form
    6,261.19/8,640.42 = 3,609.10/x
  3. Step 3: Cross multiply
    6,261.19x = 8,640.42 × 3,609.10
  4. Step 4: Simplify right side
    6,261.19x = 31,184,139.82
  5. Step 5: Solve for x
    x = 31,184,139.82/6,261.19
  6. Step 6: Final answer
    x = 4,980.55

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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.