Home / 4,115.76-5,679.08-2,347.40

Finding the Fourth Proportional to 4,115.76, 5,679.08 and 2,347.40

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Solution

The fourth proportional to 4,115.76, 5,679.08 and 2,347.40 is: 3,239.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.76 : 5,679.08 = 2,347.40 : x
  2. Step 2: Convert to fraction form
    4,115.76/5,679.08 = 2,347.40/x
  3. Step 3: Cross multiply
    4,115.76x = 5,679.08 × 2,347.40
  4. Step 4: Simplify right side
    4,115.76x = 13,331,072.39
  5. Step 5: Solve for x
    x = 13,331,072.39/4,115.76
  6. Step 6: Final answer
    x = 3,239.03

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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.