Home / 1,621.62-2,432.27-525.99

Finding the Fourth Proportional to 1,621.62, 2,432.27 and 525.99

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Solution

The fourth proportional to 1,621.62, 2,432.27 and 525.99 is: 788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.62 : 2,432.27 = 525.99 : x
  2. Step 2: Convert to fraction form
    1,621.62/2,432.27 = 525.99/x
  3. Step 3: Cross multiply
    1,621.62x = 2,432.27 × 525.99
  4. Step 4: Simplify right side
    1,621.62x = 1,279,349.70
  5. Step 5: Solve for x
    x = 1,279,349.70/1,621.62
  6. Step 6: Final answer
    x = 788.93

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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.