Home / 1,870.88-2,581.79-1,031.61

Finding the Fourth Proportional to 1,870.88, 2,581.79 and 1,031.61

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Solution

The fourth proportional to 1,870.88, 2,581.79 and 1,031.61 is: 1,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.88 : 2,581.79 = 1,031.61 : x
  2. Step 2: Convert to fraction form
    1,870.88/2,581.79 = 1,031.61/x
  3. Step 3: Cross multiply
    1,870.88x = 2,581.79 × 1,031.61
  4. Step 4: Simplify right side
    1,870.88x = 2,663,395.22
  5. Step 5: Solve for x
    x = 2,663,395.22/1,870.88
  6. Step 6: Final answer
    x = 1,423.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.