Home / 3,108.93-4,290.32-1,711.68

Finding the Fourth Proportional to 3,108.93, 4,290.32 and 1,711.68

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Solution

The fourth proportional to 3,108.93, 4,290.32 and 1,711.68 is: 2,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.93 : 4,290.32 = 1,711.68 : x
  2. Step 2: Convert to fraction form
    3,108.93/4,290.32 = 1,711.68/x
  3. Step 3: Cross multiply
    3,108.93x = 4,290.32 × 1,711.68
  4. Step 4: Simplify right side
    3,108.93x = 7,343,633.49
  5. Step 5: Solve for x
    x = 7,343,633.49/3,108.93
  6. Step 6: Final answer
    x = 2,362.11

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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.