Home / 1,621.57-2,432.13-525.94

Finding the Fourth Proportional to 1,621.57, 2,432.13 and 525.94

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Solution

The fourth proportional to 1,621.57, 2,432.13 and 525.94 is: 788.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.57 : 2,432.13 = 525.94 : x
  2. Step 2: Convert to fraction form
    1,621.57/2,432.13 = 525.94/x
  3. Step 3: Cross multiply
    1,621.57x = 2,432.13 × 525.94
  4. Step 4: Simplify right side
    1,621.57x = 1,279,160.08
  5. Step 5: Solve for x
    x = 1,279,160.08/1,621.57
  6. Step 6: Final answer
    x = 788.84

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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.