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Finding the Fourth Proportional to 713.51, 982.33 and 672.50

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Solution

The fourth proportional to 713.51, 982.33 and 672.50 is: 925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.51 : 982.33 = 672.50 : x
  2. Step 2: Convert to fraction form
    713.51/982.33 = 672.50/x
  3. Step 3: Cross multiply
    713.51x = 982.33 × 672.50
  4. Step 4: Simplify right side
    713.51x = 660,617.70
  5. Step 5: Solve for x
    x = 660,617.70/713.51
  6. Step 6: Final answer
    x = 925.87

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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.