Home / 3,659.16-5,488.80-2,015.40

Finding the Fourth Proportional to 3,659.16, 5,488.80 and 2,015.40

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Solution

The fourth proportional to 3,659.16, 5,488.80 and 2,015.40 is: 3,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.16 : 5,488.80 = 2,015.40 : x
  2. Step 2: Convert to fraction form
    3,659.16/5,488.80 = 2,015.40/x
  3. Step 3: Cross multiply
    3,659.16x = 5,488.80 × 2,015.40
  4. Step 4: Simplify right side
    3,659.16x = 11,062,127.52
  5. Step 5: Solve for x
    x = 11,062,127.52/3,659.16
  6. Step 6: Final answer
    x = 3,023.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.