Home / 1,729.42-2,605.67-1,565.10

Finding the Fourth Proportional to 1,729.42, 2,605.67 and 1,565.10

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Solution

The fourth proportional to 1,729.42, 2,605.67 and 1,565.10 is: 2,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.42 : 2,605.67 = 1,565.10 : x
  2. Step 2: Convert to fraction form
    1,729.42/2,605.67 = 1,565.10/x
  3. Step 3: Cross multiply
    1,729.42x = 2,605.67 × 1,565.10
  4. Step 4: Simplify right side
    1,729.42x = 4,078,134.12
  5. Step 5: Solve for x
    x = 4,078,134.12/1,729.42
  6. Step 6: Final answer
    x = 2,358.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.