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Finding the Fourth Proportional to 5,115.08, 7,663.04 and 2,917.16

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Solution

The fourth proportional to 5,115.08, 7,663.04 and 2,917.16 is: 4,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.08 : 7,663.04 = 2,917.16 : x
  2. Step 2: Convert to fraction form
    5,115.08/7,663.04 = 2,917.16/x
  3. Step 3: Cross multiply
    5,115.08x = 7,663.04 × 2,917.16
  4. Step 4: Simplify right side
    5,115.08x = 22,354,313.77
  5. Step 5: Solve for x
    x = 22,354,313.77/5,115.08
  6. Step 6: Final answer
    x = 4,370.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.