Home / 5,876.64-8,815.59-1,981.35

Finding the Fourth Proportional to 5,876.64, 8,815.59 and 1,981.35

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Solution

The fourth proportional to 5,876.64, 8,815.59 and 1,981.35 is: 2,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,876.64 : 8,815.59 = 1,981.35 : x
  2. Step 2: Convert to fraction form
    5,876.64/8,815.59 = 1,981.35/x
  3. Step 3: Cross multiply
    5,876.64x = 8,815.59 × 1,981.35
  4. Step 4: Simplify right side
    5,876.64x = 17,466,769.25
  5. Step 5: Solve for x
    x = 17,466,769.25/5,876.64
  6. Step 6: Final answer
    x = 2,972.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.