Home / 1,878.01-2,592.19-1,318.61

Finding the Fourth Proportional to 1,878.01, 2,592.19 and 1,318.61

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Solution

The fourth proportional to 1,878.01, 2,592.19 and 1,318.61 is: 1,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.01 : 2,592.19 = 1,318.61 : x
  2. Step 2: Convert to fraction form
    1,878.01/2,592.19 = 1,318.61/x
  3. Step 3: Cross multiply
    1,878.01x = 2,592.19 × 1,318.61
  4. Step 4: Simplify right side
    1,878.01x = 3,418,095.78
  5. Step 5: Solve for x
    x = 3,418,095.78/1,878.01
  6. Step 6: Final answer
    x = 1,820.07

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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.