Home / 2,256.19-3,113.52-1,261.46

Finding the Fourth Proportional to 2,256.19, 3,113.52 and 1,261.46

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Solution

The fourth proportional to 2,256.19, 3,113.52 and 1,261.46 is: 1,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.19 : 3,113.52 = 1,261.46 : x
  2. Step 2: Convert to fraction form
    2,256.19/3,113.52 = 1,261.46/x
  3. Step 3: Cross multiply
    2,256.19x = 3,113.52 × 1,261.46
  4. Step 4: Simplify right side
    2,256.19x = 3,927,580.94
  5. Step 5: Solve for x
    x = 3,927,580.94/2,256.19
  6. Step 6: Final answer
    x = 1,740.80

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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.