Home / 1,612.32-2,220.12-1,575.84

Finding the Fourth Proportional to 1,612.32, 2,220.12 and 1,575.84

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Solution

The fourth proportional to 1,612.32, 2,220.12 and 1,575.84 is: 2,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.32 : 2,220.12 = 1,575.84 : x
  2. Step 2: Convert to fraction form
    1,612.32/2,220.12 = 1,575.84/x
  3. Step 3: Cross multiply
    1,612.32x = 2,220.12 × 1,575.84
  4. Step 4: Simplify right side
    1,612.32x = 3,498,553.90
  5. Step 5: Solve for x
    x = 3,498,553.90/1,612.32
  6. Step 6: Final answer
    x = 2,169.89

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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.