Home / 5,182.79-7,152.20-3,086.91

Finding the Fourth Proportional to 5,182.79, 7,152.20 and 3,086.91

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Solution

The fourth proportional to 5,182.79, 7,152.20 and 3,086.91 is: 4,259.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.79 : 7,152.20 = 3,086.91 : x
  2. Step 2: Convert to fraction form
    5,182.79/7,152.20 = 3,086.91/x
  3. Step 3: Cross multiply
    5,182.79x = 7,152.20 × 3,086.91
  4. Step 4: Simplify right side
    5,182.79x = 22,078,193.84
  5. Step 5: Solve for x
    x = 22,078,193.84/5,182.79
  6. Step 6: Final answer
    x = 4,259.91

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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.