Home / 5,868.40-8,098.60-3,215.68

Finding the Fourth Proportional to 5,868.40, 8,098.60 and 3,215.68

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Solution

The fourth proportional to 5,868.40, 8,098.60 and 3,215.68 is: 4,437.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,868.40 : 8,098.60 = 3,215.68 : x
  2. Step 2: Convert to fraction form
    5,868.40/8,098.60 = 3,215.68/x
  3. Step 3: Cross multiply
    5,868.40x = 8,098.60 × 3,215.68
  4. Step 4: Simplify right side
    5,868.40x = 26,042,506.05
  5. Step 5: Solve for x
    x = 26,042,506.05/5,868.40
  6. Step 6: Final answer
    x = 4,437.75

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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.