Home / 4,077.81-5,630.08-3,131.91

Finding the Fourth Proportional to 4,077.81, 5,630.08 and 3,131.91

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Solution

The fourth proportional to 4,077.81, 5,630.08 and 3,131.91 is: 4,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.81 : 5,630.08 = 3,131.91 : x
  2. Step 2: Convert to fraction form
    4,077.81/5,630.08 = 3,131.91/x
  3. Step 3: Cross multiply
    4,077.81x = 5,630.08 × 3,131.91
  4. Step 4: Simplify right side
    4,077.81x = 17,632,901.48
  5. Step 5: Solve for x
    x = 17,632,901.48/4,077.81
  6. Step 6: Final answer
    x = 4,324.11

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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.