Home / 3,986.55-5,500.80-2,307.63

Finding the Fourth Proportional to 3,986.55, 5,500.80 and 2,307.63

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Solution

The fourth proportional to 3,986.55, 5,500.80 and 2,307.63 is: 3,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.55 : 5,500.80 = 2,307.63 : x
  2. Step 2: Convert to fraction form
    3,986.55/5,500.80 = 2,307.63/x
  3. Step 3: Cross multiply
    3,986.55x = 5,500.80 × 2,307.63
  4. Step 4: Simplify right side
    3,986.55x = 12,693,811.10
  5. Step 5: Solve for x
    x = 12,693,811.10/3,986.55
  6. Step 6: Final answer
    x = 3,184.16

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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.