Home / 3,868.81-5,340.35-2,296.91

Finding the Fourth Proportional to 3,868.81, 5,340.35 and 2,296.91

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Solution

The fourth proportional to 3,868.81, 5,340.35 and 2,296.91 is: 3,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.81 : 5,340.35 = 2,296.91 : x
  2. Step 2: Convert to fraction form
    3,868.81/5,340.35 = 2,296.91/x
  3. Step 3: Cross multiply
    3,868.81x = 5,340.35 × 2,296.91
  4. Step 4: Simplify right side
    3,868.81x = 12,266,303.32
  5. Step 5: Solve for x
    x = 12,266,303.32/3,868.81
  6. Step 6: Final answer
    x = 3,170.56

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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.