Home / 4,154.02-6,231.78-1,380.18

Finding the Fourth Proportional to 4,154.02, 6,231.78 and 1,380.18

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Solution

The fourth proportional to 4,154.02, 6,231.78 and 1,380.18 is: 2,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,154.02 : 6,231.78 = 1,380.18 : x
  2. Step 2: Convert to fraction form
    4,154.02/6,231.78 = 1,380.18/x
  3. Step 3: Cross multiply
    4,154.02x = 6,231.78 × 1,380.18
  4. Step 4: Simplify right side
    4,154.02x = 8,600,978.12
  5. Step 5: Solve for x
    x = 8,600,978.12/4,154.02
  6. Step 6: Final answer
    x = 2,070.52

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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.