Home / 2,772.02-4,158.02-1,128.12

Finding the Fourth Proportional to 2,772.02, 4,158.02 and 1,128.12

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Solution

The fourth proportional to 2,772.02, 4,158.02 and 1,128.12 is: 1,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.02 : 4,158.02 = 1,128.12 : x
  2. Step 2: Convert to fraction form
    2,772.02/4,158.02 = 1,128.12/x
  3. Step 3: Cross multiply
    2,772.02x = 4,158.02 × 1,128.12
  4. Step 4: Simplify right side
    2,772.02x = 4,690,748.34
  5. Step 5: Solve for x
    x = 4,690,748.34/2,772.02
  6. Step 6: Final answer
    x = 1,692.18

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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.