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Finding the Fourth Proportional to 6,490.58, 8,957.88 and 3,802.64

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Solution

The fourth proportional to 6,490.58, 8,957.88 and 3,802.64 is: 5,248.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.58 : 8,957.88 = 3,802.64 : x
  2. Step 2: Convert to fraction form
    6,490.58/8,957.88 = 3,802.64/x
  3. Step 3: Cross multiply
    6,490.58x = 8,957.88 × 3,802.64
  4. Step 4: Simplify right side
    6,490.58x = 34,063,592.80
  5. Step 5: Solve for x
    x = 34,063,592.80/6,490.58
  6. Step 6: Final answer
    x = 5,248.16

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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.