Home / 5,270.23-7,271.77-3,144.79

Finding the Fourth Proportional to 5,270.23, 7,271.77 and 3,144.79

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Solution

The fourth proportional to 5,270.23, 7,271.77 and 3,144.79 is: 4,339.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.23 : 7,271.77 = 3,144.79 : x
  2. Step 2: Convert to fraction form
    5,270.23/7,271.77 = 3,144.79/x
  3. Step 3: Cross multiply
    5,270.23x = 7,271.77 × 3,144.79
  4. Step 4: Simplify right side
    5,270.23x = 22,868,189.58
  5. Step 5: Solve for x
    x = 22,868,189.58/5,270.23
  6. Step 6: Final answer
    x = 4,339.13

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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.