Home / 1,521.28-2,284.08-1,451.68

Finding the Fourth Proportional to 1,521.28, 2,284.08 and 1,451.68

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Solution

The fourth proportional to 1,521.28, 2,284.08 and 1,451.68 is: 2,179.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.28 : 2,284.08 = 1,451.68 : x
  2. Step 2: Convert to fraction form
    1,521.28/2,284.08 = 1,451.68/x
  3. Step 3: Cross multiply
    1,521.28x = 2,284.08 × 1,451.68
  4. Step 4: Simplify right side
    1,521.28x = 3,315,753.25
  5. Step 5: Solve for x
    x = 3,315,753.25/1,521.28
  6. Step 6: Final answer
    x = 2,179.58

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1.5x scale

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.