Home / 5,126.61-7,074.43-2,888.43

Finding the Fourth Proportional to 5,126.61, 7,074.43 and 2,888.43

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Solution

The fourth proportional to 5,126.61, 7,074.43 and 2,888.43 is: 3,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.61 : 7,074.43 = 2,888.43 : x
  2. Step 2: Convert to fraction form
    5,126.61/7,074.43 = 2,888.43/x
  3. Step 3: Cross multiply
    5,126.61x = 7,074.43 × 2,888.43
  4. Step 4: Simplify right side
    5,126.61x = 20,433,995.84
  5. Step 5: Solve for x
    x = 20,433,995.84/5,126.61
  6. Step 6: Final answer
    x = 3,985.87

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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.