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Finding the Fourth Proportional to 1,495.80, 2,062.98 and 970.92

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Solution

The fourth proportional to 1,495.80, 2,062.98 and 970.92 is: 1,339.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.80 : 2,062.98 = 970.92 : x
  2. Step 2: Convert to fraction form
    1,495.80/2,062.98 = 970.92/x
  3. Step 3: Cross multiply
    1,495.80x = 2,062.98 × 970.92
  4. Step 4: Simplify right side
    1,495.80x = 2,002,988.54
  5. Step 5: Solve for x
    x = 2,002,988.54/1,495.80
  6. Step 6: Final answer
    x = 1,339.08

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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.