Home / 3,187.04-4,387.20-2,764.91

Finding the Fourth Proportional to 3,187.04, 4,387.20 and 2,764.91

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Solution

The fourth proportional to 3,187.04, 4,387.20 and 2,764.91 is: 3,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.04 : 4,387.20 = 2,764.91 : x
  2. Step 2: Convert to fraction form
    3,187.04/4,387.20 = 2,764.91/x
  3. Step 3: Cross multiply
    3,187.04x = 4,387.20 × 2,764.91
  4. Step 4: Simplify right side
    3,187.04x = 12,130,224.12
  5. Step 5: Solve for x
    x = 12,130,224.12/3,187.04
  6. Step 6: Final answer
    x = 3,806.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.