Home / 5,177.55-7,144.43-2,938.98

Finding the Fourth Proportional to 5,177.55, 7,144.43 and 2,938.98

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Solution

The fourth proportional to 5,177.55, 7,144.43 and 2,938.98 is: 4,055.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.55 : 7,144.43 = 2,938.98 : x
  2. Step 2: Convert to fraction form
    5,177.55/7,144.43 = 2,938.98/x
  3. Step 3: Cross multiply
    5,177.55x = 7,144.43 × 2,938.98
  4. Step 4: Simplify right side
    5,177.55x = 20,997,322.19
  5. Step 5: Solve for x
    x = 20,997,322.19/5,177.55
  6. Step 6: Final answer
    x = 4,055.46

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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.