Home / 3,656.16-5,486.04-1,807.20

Finding the Fourth Proportional to 3,656.16, 5,486.04 and 1,807.20

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Solution

The fourth proportional to 3,656.16, 5,486.04 and 1,807.20 is: 2,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.16 : 5,486.04 = 1,807.20 : x
  2. Step 2: Convert to fraction form
    3,656.16/5,486.04 = 1,807.20/x
  3. Step 3: Cross multiply
    3,656.16x = 5,486.04 × 1,807.20
  4. Step 4: Simplify right side
    3,656.16x = 9,914,371.49
  5. Step 5: Solve for x
    x = 9,914,371.49/3,656.16
  6. Step 6: Final answer
    x = 2,711.69

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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.