Home / 1,864.32-2,573.08-1,078.83

Finding the Fourth Proportional to 1,864.32, 2,573.08 and 1,078.83

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Solution

The fourth proportional to 1,864.32, 2,573.08 and 1,078.83 is: 1,488.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.32 : 2,573.08 = 1,078.83 : x
  2. Step 2: Convert to fraction form
    1,864.32/2,573.08 = 1,078.83/x
  3. Step 3: Cross multiply
    1,864.32x = 2,573.08 × 1,078.83
  4. Step 4: Simplify right side
    1,864.32x = 2,775,915.90
  5. Step 5: Solve for x
    x = 2,775,915.90/1,864.32
  6. Step 6: Final answer
    x = 1,488.97

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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.