Home / 5,126.31-7,073.79-2,888.13

Finding the Fourth Proportional to 5,126.31, 7,073.79 and 2,888.13

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Solution

The fourth proportional to 5,126.31, 7,073.79 and 2,888.13 is: 3,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.31 : 7,073.79 = 2,888.13 : x
  2. Step 2: Convert to fraction form
    5,126.31/7,073.79 = 2,888.13/x
  3. Step 3: Cross multiply
    5,126.31x = 7,073.79 × 2,888.13
  4. Step 4: Simplify right side
    5,126.31x = 20,430,025.11
  5. Step 5: Solve for x
    x = 20,430,025.11/5,126.31
  6. Step 6: Final answer
    x = 3,985.33

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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.