Home / 1,519.40-2,279.22-532.11

Finding the Fourth Proportional to 1,519.40, 2,279.22 and 532.11

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Solution

The fourth proportional to 1,519.40, 2,279.22 and 532.11 is: 798.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.40 : 2,279.22 = 532.11 : x
  2. Step 2: Convert to fraction form
    1,519.40/2,279.22 = 532.11/x
  3. Step 3: Cross multiply
    1,519.40x = 2,279.22 × 532.11
  4. Step 4: Simplify right side
    1,519.40x = 1,212,795.75
  5. Step 5: Solve for x
    x = 1,212,795.75/1,519.40
  6. Step 6: Final answer
    x = 798.21

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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.