Home / 1,522.19-2,282.61-645.10

Finding the Fourth Proportional to 1,522.19, 2,282.61 and 645.10

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Solution

The fourth proportional to 1,522.19, 2,282.61 and 645.10 is: 967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522.19 : 2,282.61 = 645.10 : x
  2. Step 2: Convert to fraction form
    1,522.19/2,282.61 = 645.10/x
  3. Step 3: Cross multiply
    1,522.19x = 2,282.61 × 645.10
  4. Step 4: Simplify right side
    1,522.19x = 1,472,508.42
  5. Step 5: Solve for x
    x = 1,472,508.42/1,522.19
  6. Step 6: Final answer
    x = 967.36

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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.