Home / 1,251.08-1,723.70-1,134.60

Finding the Fourth Proportional to 1,251.08, 1,723.70 and 1,134.60

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Solution

The fourth proportional to 1,251.08, 1,723.70 and 1,134.60 is: 1,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.08 : 1,723.70 = 1,134.60 : x
  2. Step 2: Convert to fraction form
    1,251.08/1,723.70 = 1,134.60/x
  3. Step 3: Cross multiply
    1,251.08x = 1,723.70 × 1,134.60
  4. Step 4: Simplify right side
    1,251.08x = 1,955,710.02
  5. Step 5: Solve for x
    x = 1,955,710.02/1,251.08
  6. Step 6: Final answer
    x = 1,563.22

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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.