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Finding the Fourth Proportional to 4,689.93, 6,471.84 and 2,750.20

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Solution

The fourth proportional to 4,689.93, 6,471.84 and 2,750.20 is: 3,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.93 : 6,471.84 = 2,750.20 : x
  2. Step 2: Convert to fraction form
    4,689.93/6,471.84 = 2,750.20/x
  3. Step 3: Cross multiply
    4,689.93x = 6,471.84 × 2,750.20
  4. Step 4: Simplify right side
    4,689.93x = 17,798,854.37
  5. Step 5: Solve for x
    x = 17,798,854.37/4,689.93
  6. Step 6: Final answer
    x = 3,795.12

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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.