Home / 5,089.47-7,023.78-2,851.49

Finding the Fourth Proportional to 5,089.47, 7,023.78 and 2,851.49

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Solution

The fourth proportional to 5,089.47, 7,023.78 and 2,851.49 is: 3,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.47 : 7,023.78 = 2,851.49 : x
  2. Step 2: Convert to fraction form
    5,089.47/7,023.78 = 2,851.49/x
  3. Step 3: Cross multiply
    5,089.47x = 7,023.78 × 2,851.49
  4. Step 4: Simplify right side
    5,089.47x = 20,028,203.31
  5. Step 5: Solve for x
    x = 20,028,203.31/5,089.47
  6. Step 6: Final answer
    x = 3,935.22

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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.