Home / 2,772.39-4,154.97-1,127.01

Finding the Fourth Proportional to 2,772.39, 4,154.97 and 1,127.01

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Solution

The fourth proportional to 2,772.39, 4,154.97 and 1,127.01 is: 1,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.39 : 4,154.97 = 1,127.01 : x
  2. Step 2: Convert to fraction form
    2,772.39/4,154.97 = 1,127.01/x
  3. Step 3: Cross multiply
    2,772.39x = 4,154.97 × 1,127.01
  4. Step 4: Simplify right side
    2,772.39x = 4,682,692.74
  5. Step 5: Solve for x
    x = 4,682,692.74/2,772.39
  6. Step 6: Final answer
    x = 1,689.05

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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.