Home / 3,971.24-5,484-2,557.38

Finding the Fourth Proportional to 3,971.24, 5,484 and 2,557.38

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Solution

The fourth proportional to 3,971.24, 5,484 and 2,557.38 is: 3,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.24 : 5,484 = 2,557.38 : x
  2. Step 2: Convert to fraction form
    3,971.24/5,484 = 2,557.38/x
  3. Step 3: Cross multiply
    3,971.24x = 5,484 × 2,557.38
  4. Step 4: Simplify right side
    3,971.24x = 14,024,671.92
  5. Step 5: Solve for x
    x = 14,024,671.92/3,971.24
  6. Step 6: Final answer
    x = 3,531.56

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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.