Home / 2,938.10-4,054.45-1,611.78

Finding the Fourth Proportional to 2,938.10, 4,054.45 and 1,611.78

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Solution

The fourth proportional to 2,938.10, 4,054.45 and 1,611.78 is: 2,224.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.10 : 4,054.45 = 1,611.78 : x
  2. Step 2: Convert to fraction form
    2,938.10/4,054.45 = 1,611.78/x
  3. Step 3: Cross multiply
    2,938.10x = 4,054.45 × 1,611.78
  4. Step 4: Simplify right side
    2,938.10x = 6,534,866.38
  5. Step 5: Solve for x
    x = 6,534,866.38/2,938.10
  6. Step 6: Final answer
    x = 2,224.18

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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.