Home / 5,155.35-7,113.96-3,031.17

Finding the Fourth Proportional to 5,155.35, 7,113.96 and 3,031.17

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Solution

The fourth proportional to 5,155.35, 7,113.96 and 3,031.17 is: 4,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.35 : 7,113.96 = 3,031.17 : x
  2. Step 2: Convert to fraction form
    5,155.35/7,113.96 = 3,031.17/x
  3. Step 3: Cross multiply
    5,155.35x = 7,113.96 × 3,031.17
  4. Step 4: Simplify right side
    5,155.35x = 21,563,622.13
  5. Step 5: Solve for x
    x = 21,563,622.13/5,155.35
  6. Step 6: Final answer
    x = 4,182.77

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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.