Home / 4,897.28-7,345.24-1,387.56

Finding the Fourth Proportional to 4,897.28, 7,345.24 and 1,387.56

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Solution

The fourth proportional to 4,897.28, 7,345.24 and 1,387.56 is: 2,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,897.28 : 7,345.24 = 1,387.56 : x
  2. Step 2: Convert to fraction form
    4,897.28/7,345.24 = 1,387.56/x
  3. Step 3: Cross multiply
    4,897.28x = 7,345.24 × 1,387.56
  4. Step 4: Simplify right side
    4,897.28x = 10,191,961.21
  5. Step 5: Solve for x
    x = 10,191,961.21/4,897.28
  6. Step 6: Final answer
    x = 2,081.15

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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.