Home / 3,134.18-4,323.90-1,938.32

Finding the Fourth Proportional to 3,134.18, 4,323.90 and 1,938.32

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Solution

The fourth proportional to 3,134.18, 4,323.90 and 1,938.32 is: 2,674.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.18 : 4,323.90 = 1,938.32 : x
  2. Step 2: Convert to fraction form
    3,134.18/4,323.90 = 1,938.32/x
  3. Step 3: Cross multiply
    3,134.18x = 4,323.90 × 1,938.32
  4. Step 4: Simplify right side
    3,134.18x = 8,381,092.16
  5. Step 5: Solve for x
    x = 8,381,092.16/3,134.18
  6. Step 6: Final answer
    x = 2,674.09

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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.