Home / 3,937.46-5,430.90-2,591.44

Finding the Fourth Proportional to 3,937.46, 5,430.90 and 2,591.44

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Solution

The fourth proportional to 3,937.46, 5,430.90 and 2,591.44 is: 3,574.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.46 : 5,430.90 = 2,591.44 : x
  2. Step 2: Convert to fraction form
    3,937.46/5,430.90 = 2,591.44/x
  3. Step 3: Cross multiply
    3,937.46x = 5,430.90 × 2,591.44
  4. Step 4: Simplify right side
    3,937.46x = 14,073,851.50
  5. Step 5: Solve for x
    x = 14,073,851.50/3,937.46
  6. Step 6: Final answer
    x = 3,574.35

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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.