Home / 5,089.36-7,022.40-2,851.32

Finding the Fourth Proportional to 5,089.36, 7,022.40 and 2,851.32

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Solution

The fourth proportional to 5,089.36, 7,022.40 and 2,851.32 is: 3,934.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.36 : 7,022.40 = 2,851.32 : x
  2. Step 2: Convert to fraction form
    5,089.36/7,022.40 = 2,851.32/x
  3. Step 3: Cross multiply
    5,089.36x = 7,022.40 × 2,851.32
  4. Step 4: Simplify right side
    5,089.36x = 20,023,109.57
  5. Step 5: Solve for x
    x = 20,023,109.57/5,089.36
  6. Step 6: Final answer
    x = 3,934.31

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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.