Home / 5,415.39-7,471.01-3,647.57

Finding the Fourth Proportional to 5,415.39, 7,471.01 and 3,647.57

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Solution

The fourth proportional to 5,415.39, 7,471.01 and 3,647.57 is: 5,032.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.39 : 7,471.01 = 3,647.57 : x
  2. Step 2: Convert to fraction form
    5,415.39/7,471.01 = 3,647.57/x
  3. Step 3: Cross multiply
    5,415.39x = 7,471.01 × 3,647.57
  4. Step 4: Simplify right side
    5,415.39x = 27,251,003.71
  5. Step 5: Solve for x
    x = 27,251,003.71/5,415.39
  6. Step 6: Final answer
    x = 5,032.14

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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.