Home / 5,124.24-7,072.16-2,887.02

Finding the Fourth Proportional to 5,124.24, 7,072.16 and 2,887.02

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Solution

The fourth proportional to 5,124.24, 7,072.16 and 2,887.02 is: 3,984.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.24 : 7,072.16 = 2,887.02 : x
  2. Step 2: Convert to fraction form
    5,124.24/7,072.16 = 2,887.02/x
  3. Step 3: Cross multiply
    5,124.24x = 7,072.16 × 2,887.02
  4. Step 4: Simplify right side
    5,124.24x = 20,417,452.93
  5. Step 5: Solve for x
    x = 20,417,452.93/5,124.24
  6. Step 6: Final answer
    x = 3,984.48

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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.