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Finding the Fourth Proportional to 1,977.31, 2,966.52 and 590.70

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Solution

The fourth proportional to 1,977.31, 2,966.52 and 590.70 is: 886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.31 : 2,966.52 = 590.70 : x
  2. Step 2: Convert to fraction form
    1,977.31/2,966.52 = 590.70/x
  3. Step 3: Cross multiply
    1,977.31x = 2,966.52 × 590.70
  4. Step 4: Simplify right side
    1,977.31x = 1,752,323.36
  5. Step 5: Solve for x
    x = 1,752,323.36/1,977.31
  6. Step 6: Final answer
    x = 886.22

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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.