Home / 5,177.04-7,142.76-4,678.08

Finding the Fourth Proportional to 5,177.04, 7,142.76 and 4,678.08

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Solution

The fourth proportional to 5,177.04, 7,142.76 and 4,678.08 is: 6,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.04 : 7,142.76 = 4,678.08 : x
  2. Step 2: Convert to fraction form
    5,177.04/7,142.76 = 4,678.08/x
  3. Step 3: Cross multiply
    5,177.04x = 7,142.76 × 4,678.08
  4. Step 4: Simplify right side
    5,177.04x = 33,414,402.70
  5. Step 5: Solve for x
    x = 33,414,402.70/5,177.04
  6. Step 6: Final answer
    x = 6,454.35

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Half 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.