Home / 1,708.19-2,565.01-1,291.74

Finding the Fourth Proportional to 1,708.19, 2,565.01 and 1,291.74

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Solution

The fourth proportional to 1,708.19, 2,565.01 and 1,291.74 is: 1,939.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.19 : 2,565.01 = 1,291.74 : x
  2. Step 2: Convert to fraction form
    1,708.19/2,565.01 = 1,291.74/x
  3. Step 3: Cross multiply
    1,708.19x = 2,565.01 × 1,291.74
  4. Step 4: Simplify right side
    1,708.19x = 3,313,326.02
  5. Step 5: Solve for x
    x = 3,313,326.02/1,708.19
  6. Step 6: Final answer
    x = 1,939.68

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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.