Home / 2,955.52-4,077.12-2,255.68

Finding the Fourth Proportional to 2,955.52, 4,077.12 and 2,255.68

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Solution

The fourth proportional to 2,955.52, 4,077.12 and 2,255.68 is: 3,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.52 : 4,077.12 = 2,255.68 : x
  2. Step 2: Convert to fraction form
    2,955.52/4,077.12 = 2,255.68/x
  3. Step 3: Cross multiply
    2,955.52x = 4,077.12 × 2,255.68
  4. Step 4: Simplify right side
    2,955.52x = 9,196,678.04
  5. Step 5: Solve for x
    x = 9,196,678.04/2,955.52
  6. Step 6: Final answer
    x = 3,111.70

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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.