Home / 4,047.78-5,585.58-2,255.18

Finding the Fourth Proportional to 4,047.78, 5,585.58 and 2,255.18

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Solution

The fourth proportional to 4,047.78, 5,585.58 and 2,255.18 is: 3,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.78 : 5,585.58 = 2,255.18 : x
  2. Step 2: Convert to fraction form
    4,047.78/5,585.58 = 2,255.18/x
  3. Step 3: Cross multiply
    4,047.78x = 5,585.58 × 2,255.18
  4. Step 4: Simplify right side
    4,047.78x = 12,596,502.27
  5. Step 5: Solve for x
    x = 12,596,502.27/4,047.78
  6. Step 6: Final answer
    x = 3,111.95

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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.