Home / 2,295.77-3,168.20-1,247.90

Finding the Fourth Proportional to 2,295.77, 3,168.20 and 1,247.90

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Solution

The fourth proportional to 2,295.77, 3,168.20 and 1,247.90 is: 1,722.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.77 : 3,168.20 = 1,247.90 : x
  2. Step 2: Convert to fraction form
    2,295.77/3,168.20 = 1,247.90/x
  3. Step 3: Cross multiply
    2,295.77x = 3,168.20 × 1,247.90
  4. Step 4: Simplify right side
    2,295.77x = 3,953,584.06
  5. Step 5: Solve for x
    x = 3,953,584.06/2,295.77
  6. Step 6: Final answer
    x = 1,722.12

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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.