Home / 1,581.66-2,384.64-1,339.92

Finding the Fourth Proportional to 1,581.66, 2,384.64 and 1,339.92

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Solution

The fourth proportional to 1,581.66, 2,384.64 and 1,339.92 is: 2,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.66 : 2,384.64 = 1,339.92 : x
  2. Step 2: Convert to fraction form
    1,581.66/2,384.64 = 1,339.92/x
  3. Step 3: Cross multiply
    1,581.66x = 2,384.64 × 1,339.92
  4. Step 4: Simplify right side
    1,581.66x = 3,195,226.83
  5. Step 5: Solve for x
    x = 3,195,226.83/1,581.66
  6. Step 6: Final answer
    x = 2,020.17

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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.