Home / 5,126.40-7,074.37-2,888.27

Finding the Fourth Proportional to 5,126.40, 7,074.37 and 2,888.27

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Solution

The fourth proportional to 5,126.40, 7,074.37 and 2,888.27 is: 3,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.40 : 7,074.37 = 2,888.27 : x
  2. Step 2: Convert to fraction form
    5,126.40/7,074.37 = 2,888.27/x
  3. Step 3: Cross multiply
    5,126.40x = 7,074.37 × 2,888.27
  4. Step 4: Simplify right side
    5,126.40x = 20,432,685.41
  5. Step 5: Solve for x
    x = 20,432,685.41/5,126.40
  6. Step 6: Final answer
    x = 3,985.78

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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.