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Finding the Fourth Proportional to 6,490.16, 8,955.24 and 3,695.12

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Solution

The fourth proportional to 6,490.16, 8,955.24 and 3,695.12 is: 5,098.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.16 : 8,955.24 = 3,695.12 : x
  2. Step 2: Convert to fraction form
    6,490.16/8,955.24 = 3,695.12/x
  3. Step 3: Cross multiply
    6,490.16x = 8,955.24 × 3,695.12
  4. Step 4: Simplify right side
    6,490.16x = 33,090,686.43
  5. Step 5: Solve for x
    x = 33,090,686.43/6,490.16
  6. Step 6: Final answer
    x = 5,098.59

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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.