Home / 1,870.32-2,581.08-1,241.92

Finding the Fourth Proportional to 1,870.32, 2,581.08 and 1,241.92

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Solution

The fourth proportional to 1,870.32, 2,581.08 and 1,241.92 is: 1,713.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.32 : 2,581.08 = 1,241.92 : x
  2. Step 2: Convert to fraction form
    1,870.32/2,581.08 = 1,241.92/x
  3. Step 3: Cross multiply
    1,870.32x = 2,581.08 × 1,241.92
  4. Step 4: Simplify right side
    1,870.32x = 3,205,494.87
  5. Step 5: Solve for x
    x = 3,205,494.87/1,870.32
  6. Step 6: Final answer
    x = 1,713.88

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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.