Home / 2,998.10-4,473.70-2,686.78

Finding the Fourth Proportional to 2,998.10, 4,473.70 and 2,686.78

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Solution

The fourth proportional to 2,998.10, 4,473.70 and 2,686.78 is: 4,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.10 : 4,473.70 = 2,686.78 : x
  2. Step 2: Convert to fraction form
    2,998.10/4,473.70 = 2,686.78/x
  3. Step 3: Cross multiply
    2,998.10x = 4,473.70 × 2,686.78
  4. Step 4: Simplify right side
    2,998.10x = 12,019,847.69
  5. Step 5: Solve for x
    x = 12,019,847.69/2,998.10
  6. Step 6: Final answer
    x = 4,009.16

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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.