Home / 3,111.98-4,294.26-1,767.57

Finding the Fourth Proportional to 3,111.98, 4,294.26 and 1,767.57

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Solution

The fourth proportional to 3,111.98, 4,294.26 and 1,767.57 is: 2,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.98 : 4,294.26 = 1,767.57 : x
  2. Step 2: Convert to fraction form
    3,111.98/4,294.26 = 1,767.57/x
  3. Step 3: Cross multiply
    3,111.98x = 4,294.26 × 1,767.57
  4. Step 4: Simplify right side
    3,111.98x = 7,590,405.15
  5. Step 5: Solve for x
    x = 7,590,405.15/3,111.98
  6. Step 6: Final answer
    x = 2,439.10

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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.