Home / 3,686.29-5,526.69-1,605.90

Finding the Fourth Proportional to 3,686.29, 5,526.69 and 1,605.90

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Solution

The fourth proportional to 3,686.29, 5,526.69 and 1,605.90 is: 2,407.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.29 : 5,526.69 = 1,605.90 : x
  2. Step 2: Convert to fraction form
    3,686.29/5,526.69 = 1,605.90/x
  3. Step 3: Cross multiply
    3,686.29x = 5,526.69 × 1,605.90
  4. Step 4: Simplify right side
    3,686.29x = 8,875,311.47
  5. Step 5: Solve for x
    x = 8,875,311.47/3,686.29
  6. Step 6: Final answer
    x = 2,407.65

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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.