Home / 3,847.24-5,309.22-2,275.40

Finding the Fourth Proportional to 3,847.24, 5,309.22 and 2,275.40

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Solution

The fourth proportional to 3,847.24, 5,309.22 and 2,275.40 is: 3,140.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.24 : 5,309.22 = 2,275.40 : x
  2. Step 2: Convert to fraction form
    3,847.24/5,309.22 = 2,275.40/x
  3. Step 3: Cross multiply
    3,847.24x = 5,309.22 × 2,275.40
  4. Step 4: Simplify right side
    3,847.24x = 12,080,599.19
  5. Step 5: Solve for x
    x = 12,080,599.19/3,847.24
  6. Step 6: Final answer
    x = 3,140.07

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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.