Home / 2,472.68-3,710-1,085.28

Finding the Fourth Proportional to 2,472.68, 3,710 and 1,085.28

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Solution

The fourth proportional to 2,472.68, 3,710 and 1,085.28 is: 1,628.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.68 : 3,710 = 1,085.28 : x
  2. Step 2: Convert to fraction form
    2,472.68/3,710 = 1,085.28/x
  3. Step 3: Cross multiply
    2,472.68x = 3,710 × 1,085.28
  4. Step 4: Simplify right side
    2,472.68x = 4,026,388.80
  5. Step 5: Solve for x
    x = 4,026,388.80/2,472.68
  6. Step 6: Final answer
    x = 1,628.35

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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.