Home / 2,766.02-4,149.30-916.70

Finding the Fourth Proportional to 2,766.02, 4,149.30 and 916.70

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Solution

The fourth proportional to 2,766.02, 4,149.30 and 916.70 is: 1,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.02 : 4,149.30 = 916.70 : x
  2. Step 2: Convert to fraction form
    2,766.02/4,149.30 = 916.70/x
  3. Step 3: Cross multiply
    2,766.02x = 4,149.30 × 916.70
  4. Step 4: Simplify right side
    2,766.02x = 3,803,663.31
  5. Step 5: Solve for x
    x = 3,803,663.31/2,766.02
  6. Step 6: Final answer
    x = 1,375.14

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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.