Home / 5,207.39-7,187.70-2,970.48

Finding the Fourth Proportional to 5,207.39, 7,187.70 and 2,970.48

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Solution

The fourth proportional to 5,207.39, 7,187.70 and 2,970.48 is: 4,100.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.39 : 7,187.70 = 2,970.48 : x
  2. Step 2: Convert to fraction form
    5,207.39/7,187.70 = 2,970.48/x
  3. Step 3: Cross multiply
    5,207.39x = 7,187.70 × 2,970.48
  4. Step 4: Simplify right side
    5,207.39x = 21,350,919.10
  5. Step 5: Solve for x
    x = 21,350,919.10/5,207.39
  6. Step 6: Final answer
    x = 4,100.12

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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.