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Finding the Fourth Proportional to 1,708.62, 2,357.85 and 962.56

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Solution

The fourth proportional to 1,708.62, 2,357.85 and 962.56 is: 1,328.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.62 : 2,357.85 = 962.56 : x
  2. Step 2: Convert to fraction form
    1,708.62/2,357.85 = 962.56/x
  3. Step 3: Cross multiply
    1,708.62x = 2,357.85 × 962.56
  4. Step 4: Simplify right side
    1,708.62x = 2,269,572.10
  5. Step 5: Solve for x
    x = 2,269,572.10/1,708.62
  6. Step 6: Final answer
    x = 1,328.31

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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.