Home / 5,930.78-8,895.16-1,981.59

Finding the Fourth Proportional to 5,930.78, 8,895.16 and 1,981.59

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Solution

The fourth proportional to 5,930.78, 8,895.16 and 1,981.59 is: 2,972.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,930.78 : 8,895.16 = 1,981.59 : x
  2. Step 2: Convert to fraction form
    5,930.78/8,895.16 = 1,981.59/x
  3. Step 3: Cross multiply
    5,930.78x = 8,895.16 × 1,981.59
  4. Step 4: Simplify right side
    5,930.78x = 17,626,532.91
  5. Step 5: Solve for x
    x = 17,626,532.91/5,930.78
  6. Step 6: Final answer
    x = 2,972.04

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1.5x scale

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.