Home / 5,106.66-7,047.57-2,868.74

Finding the Fourth Proportional to 5,106.66, 7,047.57 and 2,868.74

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Solution

The fourth proportional to 5,106.66, 7,047.57 and 2,868.74 is: 3,959.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.66 : 7,047.57 = 2,868.74 : x
  2. Step 2: Convert to fraction form
    5,106.66/7,047.57 = 2,868.74/x
  3. Step 3: Cross multiply
    5,106.66x = 7,047.57 × 2,868.74
  4. Step 4: Simplify right side
    5,106.66x = 20,217,645.96
  5. Step 5: Solve for x
    x = 20,217,645.96/5,106.66
  6. Step 6: Final answer
    x = 3,959.07

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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.