Home / 2,452.30-3,384.11-1,390.17

Finding the Fourth Proportional to 2,452.30, 3,384.11 and 1,390.17

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Solution

The fourth proportional to 2,452.30, 3,384.11 and 1,390.17 is: 1,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,452.30 : 3,384.11 = 1,390.17 : x
  2. Step 2: Convert to fraction form
    2,452.30/3,384.11 = 1,390.17/x
  3. Step 3: Cross multiply
    2,452.30x = 3,384.11 × 1,390.17
  4. Step 4: Simplify right side
    2,452.30x = 4,704,470.30
  5. Step 5: Solve for x
    x = 4,704,470.30/2,452.30
  6. Step 6: Final answer
    x = 1,918.39

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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.