Home / 4,947.28-7,420.65-1,249.51

Finding the Fourth Proportional to 4,947.28, 7,420.65 and 1,249.51

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Solution

The fourth proportional to 4,947.28, 7,420.65 and 1,249.51 is: 1,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.28 : 7,420.65 = 1,249.51 : x
  2. Step 2: Convert to fraction form
    4,947.28/7,420.65 = 1,249.51/x
  3. Step 3: Cross multiply
    4,947.28x = 7,420.65 × 1,249.51
  4. Step 4: Simplify right side
    4,947.28x = 9,272,176.38
  5. Step 5: Solve for x
    x = 9,272,176.38/4,947.28
  6. Step 6: Final answer
    x = 1,874.20

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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.