Home / 3,972.80-5,483.50-2,557.46

Finding the Fourth Proportional to 3,972.80, 5,483.50 and 2,557.46

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Solution

The fourth proportional to 3,972.80, 5,483.50 and 2,557.46 is: 3,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.80 : 5,483.50 = 2,557.46 : x
  2. Step 2: Convert to fraction form
    3,972.80/5,483.50 = 2,557.46/x
  3. Step 3: Cross multiply
    3,972.80x = 5,483.50 × 2,557.46
  4. Step 4: Simplify right side
    3,972.80x = 14,023,831.91
  5. Step 5: Solve for x
    x = 14,023,831.91/3,972.80
  6. Step 6: Final answer
    x = 3,529.96

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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.