Home / 3,155.04-4,358.40-2,717.76

Finding the Fourth Proportional to 3,155.04, 4,358.40 and 2,717.76

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Solution

The fourth proportional to 3,155.04, 4,358.40 and 2,717.76 is: 3,754.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.04 : 4,358.40 = 2,717.76 : x
  2. Step 2: Convert to fraction form
    3,155.04/4,358.40 = 2,717.76/x
  3. Step 3: Cross multiply
    3,155.04x = 4,358.40 × 2,717.76
  4. Step 4: Simplify right side
    3,155.04x = 11,845,085.18
  5. Step 5: Solve for x
    x = 11,845,085.18/3,155.04
  6. Step 6: Final answer
    x = 3,754.34

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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.