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Finding the Fourth Proportional to 4,661.15, 6,947.37 and 4,398.71

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Solution

The fourth proportional to 4,661.15, 6,947.37 and 4,398.71 is: 6,556.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.15 : 6,947.37 = 4,398.71 : x
  2. Step 2: Convert to fraction form
    4,661.15/6,947.37 = 4,398.71/x
  3. Step 3: Cross multiply
    4,661.15x = 6,947.37 × 4,398.71
  4. Step 4: Simplify right side
    4,661.15x = 30,559,431.16
  5. Step 5: Solve for x
    x = 30,559,431.16/4,661.15
  6. Step 6: Final answer
    x = 6,556.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.