Home / 5,117.17-7,057.34-3,100.12

Finding the Fourth Proportional to 5,117.17, 7,057.34 and 3,100.12

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Solution

The fourth proportional to 5,117.17, 7,057.34 and 3,100.12 is: 4,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.17 : 7,057.34 = 3,100.12 : x
  2. Step 2: Convert to fraction form
    5,117.17/7,057.34 = 3,100.12/x
  3. Step 3: Cross multiply
    5,117.17x = 7,057.34 × 3,100.12
  4. Step 4: Simplify right side
    5,117.17x = 21,878,579.36
  5. Step 5: Solve for x
    x = 21,878,579.36/5,117.17
  6. Step 6: Final answer
    x = 4,275.52

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Half scale
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Double scale
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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.