Home / 5,422.20-8,133.30-1,724.70

Finding the Fourth Proportional to 5,422.20, 8,133.30 and 1,724.70

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Solution

The fourth proportional to 5,422.20, 8,133.30 and 1,724.70 is: 2,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.20 : 8,133.30 = 1,724.70 : x
  2. Step 2: Convert to fraction form
    5,422.20/8,133.30 = 1,724.70/x
  3. Step 3: Cross multiply
    5,422.20x = 8,133.30 × 1,724.70
  4. Step 4: Simplify right side
    5,422.20x = 14,027,502.51
  5. Step 5: Solve for x
    x = 14,027,502.51/5,422.20
  6. Step 6: Final answer
    x = 2,587.05

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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.