Home / 3,124.12-4,311.30-1,726.88

Finding the Fourth Proportional to 3,124.12, 4,311.30 and 1,726.88

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Solution

The fourth proportional to 3,124.12, 4,311.30 and 1,726.88 is: 2,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.12 : 4,311.30 = 1,726.88 : x
  2. Step 2: Convert to fraction form
    3,124.12/4,311.30 = 1,726.88/x
  3. Step 3: Cross multiply
    3,124.12x = 4,311.30 × 1,726.88
  4. Step 4: Simplify right side
    3,124.12x = 7,445,097.74
  5. Step 5: Solve for x
    x = 7,445,097.74/3,124.12
  6. Step 6: Final answer
    x = 2,383.10

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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.