Home / 3,911.30-5,865.56-1,445.46

Finding the Fourth Proportional to 3,911.30, 5,865.56 and 1,445.46

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Solution

The fourth proportional to 3,911.30, 5,865.56 and 1,445.46 is: 2,167.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.30 : 5,865.56 = 1,445.46 : x
  2. Step 2: Convert to fraction form
    3,911.30/5,865.56 = 1,445.46/x
  3. Step 3: Cross multiply
    3,911.30x = 5,865.56 × 1,445.46
  4. Step 4: Simplify right side
    3,911.30x = 8,478,432.36
  5. Step 5: Solve for x
    x = 8,478,432.36/3,911.30
  6. Step 6: Final answer
    x = 2,167.68

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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.