Home / 5,478.13-8,177.41-5,072.63

Finding the Fourth Proportional to 5,478.13, 8,177.41 and 5,072.63

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Solution

The fourth proportional to 5,478.13, 8,177.41 and 5,072.63 is: 7,572.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.13 : 8,177.41 = 5,072.63 : x
  2. Step 2: Convert to fraction form
    5,478.13/8,177.41 = 5,072.63/x
  3. Step 3: Cross multiply
    5,478.13x = 8,177.41 × 5,072.63
  4. Step 4: Simplify right side
    5,478.13x = 41,480,912.21
  5. Step 5: Solve for x
    x = 41,480,912.21/5,478.13
  6. Step 6: Final answer
    x = 7,572.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.