Home / 2,256.19-3,113.45-1,247.83

Finding the Fourth Proportional to 2,256.19, 3,113.45 and 1,247.83

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Solution

The fourth proportional to 2,256.19, 3,113.45 and 1,247.83 is: 1,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.19 : 3,113.45 = 1,247.83 : x
  2. Step 2: Convert to fraction form
    2,256.19/3,113.45 = 1,247.83/x
  3. Step 3: Cross multiply
    2,256.19x = 3,113.45 × 1,247.83
  4. Step 4: Simplify right side
    2,256.19x = 3,885,040.40
  5. Step 5: Solve for x
    x = 3,885,040.40/2,256.19
  6. Step 6: Final answer
    x = 1,721.95

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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.