Home / 5,275.46-7,876.90-4,654.28

Finding the Fourth Proportional to 5,275.46, 7,876.90 and 4,654.28

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Solution

The fourth proportional to 5,275.46, 7,876.90 and 4,654.28 is: 6,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.46 : 7,876.90 = 4,654.28 : x
  2. Step 2: Convert to fraction form
    5,275.46/7,876.90 = 4,654.28/x
  3. Step 3: Cross multiply
    5,275.46x = 7,876.90 × 4,654.28
  4. Step 4: Simplify right side
    5,275.46x = 36,661,298.13
  5. Step 5: Solve for x
    x = 36,661,298.13/5,275.46
  6. Step 6: Final answer
    x = 6,949.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.