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Finding the Fourth Proportional to 1,690.23, 2,535.65 and 595.23

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Solution

The fourth proportional to 1,690.23, 2,535.65 and 595.23 is: 892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.23 : 2,535.65 = 595.23 : x
  2. Step 2: Convert to fraction form
    1,690.23/2,535.65 = 595.23/x
  3. Step 3: Cross multiply
    1,690.23x = 2,535.65 × 595.23
  4. Step 4: Simplify right side
    1,690.23x = 1,509,291.97
  5. Step 5: Solve for x
    x = 1,509,291.97/1,690.23
  6. Step 6: Final answer
    x = 892.95

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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.