Home / 2,572.79-3,862.85-2,455.34

Finding the Fourth Proportional to 2,572.79, 3,862.85 and 2,455.34

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Solution

The fourth proportional to 2,572.79, 3,862.85 and 2,455.34 is: 3,686.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.79 : 3,862.85 = 2,455.34 : x
  2. Step 2: Convert to fraction form
    2,572.79/3,862.85 = 2,455.34/x
  3. Step 3: Cross multiply
    2,572.79x = 3,862.85 × 2,455.34
  4. Step 4: Simplify right side
    2,572.79x = 9,484,578.53
  5. Step 5: Solve for x
    x = 9,484,578.53/2,572.79
  6. Step 6: Final answer
    x = 3,686.50

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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.