Home / 5,454.86-7,528.49-3,947.31

Finding the Fourth Proportional to 5,454.86, 7,528.49 and 3,947.31

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Solution

The fourth proportional to 5,454.86, 7,528.49 and 3,947.31 is: 5,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.86 : 7,528.49 = 3,947.31 : x
  2. Step 2: Convert to fraction form
    5,454.86/7,528.49 = 3,947.31/x
  3. Step 3: Cross multiply
    5,454.86x = 7,528.49 × 3,947.31
  4. Step 4: Simplify right side
    5,454.86x = 29,717,264.13
  5. Step 5: Solve for x
    x = 29,717,264.13/5,454.86
  6. Step 6: Final answer
    x = 5,447.86

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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.