Home / 2,376.80-3,281.28-1,432.76

Finding the Fourth Proportional to 2,376.80, 3,281.28 and 1,432.76

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Solution

The fourth proportional to 2,376.80, 3,281.28 and 1,432.76 is: 1,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.80 : 3,281.28 = 1,432.76 : x
  2. Step 2: Convert to fraction form
    2,376.80/3,281.28 = 1,432.76/x
  3. Step 3: Cross multiply
    2,376.80x = 3,281.28 × 1,432.76
  4. Step 4: Simplify right side
    2,376.80x = 4,701,294.94
  5. Step 5: Solve for x
    x = 4,701,294.94/2,376.80
  6. Step 6: Final answer
    x = 1,977.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.