Home / 5,106.98-7,047.60-2,868.89

Finding the Fourth Proportional to 5,106.98, 7,047.60 and 2,868.89

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Solution

The fourth proportional to 5,106.98, 7,047.60 and 2,868.89 is: 3,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.98 : 7,047.60 = 2,868.89 : x
  2. Step 2: Convert to fraction form
    5,106.98/7,047.60 = 2,868.89/x
  3. Step 3: Cross multiply
    5,106.98x = 7,047.60 × 2,868.89
  4. Step 4: Simplify right side
    5,106.98x = 20,218,753.93
  5. Step 5: Solve for x
    x = 20,218,753.93/5,106.98
  6. Step 6: Final answer
    x = 3,959.05

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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.