Home / 1,621.48-2,432.28-526.54

Finding the Fourth Proportional to 1,621.48, 2,432.28 and 526.54

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Solution

The fourth proportional to 1,621.48, 2,432.28 and 526.54 is: 789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.48 : 2,432.28 = 526.54 : x
  2. Step 2: Convert to fraction form
    1,621.48/2,432.28 = 526.54/x
  3. Step 3: Cross multiply
    1,621.48x = 2,432.28 × 526.54
  4. Step 4: Simplify right side
    1,621.48x = 1,280,692.71
  5. Step 5: Solve for x
    x = 1,280,692.71/1,621.48
  6. Step 6: Final answer
    x = 789.83

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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.