Home / 3,985.27-5,499.93-2,661.19

Finding the Fourth Proportional to 3,985.27, 5,499.93 and 2,661.19

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Solution

The fourth proportional to 3,985.27, 5,499.93 and 2,661.19 is: 3,672.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.27 : 5,499.93 = 2,661.19 : x
  2. Step 2: Convert to fraction form
    3,985.27/5,499.93 = 2,661.19/x
  3. Step 3: Cross multiply
    3,985.27x = 5,499.93 × 2,661.19
  4. Step 4: Simplify right side
    3,985.27x = 14,636,354.95
  5. Step 5: Solve for x
    x = 14,636,354.95/3,985.27
  6. Step 6: Final answer
    x = 3,672.62

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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.