Home / 2,255.40-3,113.57-1,417.32

Finding the Fourth Proportional to 2,255.40, 3,113.57 and 1,417.32

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Solution

The fourth proportional to 2,255.40, 3,113.57 and 1,417.32 is: 1,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.40 : 3,113.57 = 1,417.32 : x
  2. Step 2: Convert to fraction form
    2,255.40/3,113.57 = 1,417.32/x
  3. Step 3: Cross multiply
    2,255.40x = 3,113.57 × 1,417.32
  4. Step 4: Simplify right side
    2,255.40x = 4,412,928.58
  5. Step 5: Solve for x
    x = 4,412,928.58/2,255.40
  6. Step 6: Final answer
    x = 1,956.61

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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.