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Finding the Fourth Proportional to 958.04, 1,319.33 and 898.70

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Solution

The fourth proportional to 958.04, 1,319.33 and 898.70 is: 1,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.04 : 1,319.33 = 898.70 : x
  2. Step 2: Convert to fraction form
    958.04/1,319.33 = 898.70/x
  3. Step 3: Cross multiply
    958.04x = 1,319.33 × 898.70
  4. Step 4: Simplify right side
    958.04x = 1,185,677.38
  5. Step 5: Solve for x
    x = 1,185,677.38/958.04
  6. Step 6: Final answer
    x = 1,237.61

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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.