Home / 4,115.40-5,679.54-2,347.56

Finding the Fourth Proportional to 4,115.40, 5,679.54 and 2,347.56

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Solution

The fourth proportional to 4,115.40, 5,679.54 and 2,347.56 is: 3,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.40 : 5,679.54 = 2,347.56 : x
  2. Step 2: Convert to fraction form
    4,115.40/5,679.54 = 2,347.56/x
  3. Step 3: Cross multiply
    4,115.40x = 5,679.54 × 2,347.56
  4. Step 4: Simplify right side
    4,115.40x = 13,333,060.92
  5. Step 5: Solve for x
    x = 13,333,060.92/4,115.40
  6. Step 6: Final answer
    x = 3,239.80

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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.