Home / 2,998.78-4,475.05-2,634.32

Finding the Fourth Proportional to 2,998.78, 4,475.05 and 2,634.32

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Solution

The fourth proportional to 2,998.78, 4,475.05 and 2,634.32 is: 3,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.78 : 4,475.05 = 2,634.32 : x
  2. Step 2: Convert to fraction form
    2,998.78/4,475.05 = 2,634.32/x
  3. Step 3: Cross multiply
    2,998.78x = 4,475.05 × 2,634.32
  4. Step 4: Simplify right side
    2,998.78x = 11,788,713.72
  5. Step 5: Solve for x
    x = 11,788,713.72/2,998.78
  6. Step 6: Final answer
    x = 3,931.17

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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.