Home / 1,621.95-2,432.51-526.62

Finding the Fourth Proportional to 1,621.95, 2,432.51 and 526.62

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Solution

The fourth proportional to 1,621.95, 2,432.51 and 526.62 is: 789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.95 : 2,432.51 = 526.62 : x
  2. Step 2: Convert to fraction form
    1,621.95/2,432.51 = 526.62/x
  3. Step 3: Cross multiply
    1,621.95x = 2,432.51 × 526.62
  4. Step 4: Simplify right side
    1,621.95x = 1,281,019.84
  5. Step 5: Solve for x
    x = 1,281,019.84/1,621.95
  6. Step 6: Final answer
    x = 789.80

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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.