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Finding the Fourth Proportional to 1,133.70, 1,700.55 and 701.70

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Solution

The fourth proportional to 1,133.70, 1,700.55 and 701.70 is: 1,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.70 : 1,700.55 = 701.70 : x
  2. Step 2: Convert to fraction form
    1,133.70/1,700.55 = 701.70/x
  3. Step 3: Cross multiply
    1,133.70x = 1,700.55 × 701.70
  4. Step 4: Simplify right side
    1,133.70x = 1,193,275.94
  5. Step 5: Solve for x
    x = 1,193,275.94/1,133.70
  6. Step 6: Final answer
    x = 1,052.55

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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.