Home / 5,497.40-7,586.94-3,139.72

Finding the Fourth Proportional to 5,497.40, 7,586.94 and 3,139.72

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Solution

The fourth proportional to 5,497.40, 7,586.94 and 3,139.72 is: 4,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,497.40 : 7,586.94 = 3,139.72 : x
  2. Step 2: Convert to fraction form
    5,497.40/7,586.94 = 3,139.72/x
  3. Step 3: Cross multiply
    5,497.40x = 7,586.94 × 3,139.72
  4. Step 4: Simplify right side
    5,497.40x = 23,820,867.26
  5. Step 5: Solve for x
    x = 23,820,867.26/5,497.40
  6. Step 6: Final answer
    x = 4,333.12

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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.