Home / 1,621.59-2,432.39-526.07

Finding the Fourth Proportional to 1,621.59, 2,432.39 and 526.07

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Solution

The fourth proportional to 1,621.59, 2,432.39 and 526.07 is: 789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.59 : 2,432.39 = 526.07 : x
  2. Step 2: Convert to fraction form
    1,621.59/2,432.39 = 526.07/x
  3. Step 3: Cross multiply
    1,621.59x = 2,432.39 × 526.07
  4. Step 4: Simplify right side
    1,621.59x = 1,279,592.62
  5. Step 5: Solve for x
    x = 1,279,592.62/1,621.59
  6. Step 6: Final answer
    x = 789.10

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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.