Home / 5,089.46-7,023.71-2,851.20

Finding the Fourth Proportional to 5,089.46, 7,023.71 and 2,851.20

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Solution

The fourth proportional to 5,089.46, 7,023.71 and 2,851.20 is: 3,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.46 : 7,023.71 = 2,851.20 : x
  2. Step 2: Convert to fraction form
    5,089.46/7,023.71 = 2,851.20/x
  3. Step 3: Cross multiply
    5,089.46x = 7,023.71 × 2,851.20
  4. Step 4: Simplify right side
    5,089.46x = 20,026,009.08
  5. Step 5: Solve for x
    x = 20,026,009.08/5,089.46
  6. Step 6: Final answer
    x = 3,934.80

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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.