Home / 3,117.74-4,304.04-1,939.20

Finding the Fourth Proportional to 3,117.74, 4,304.04 and 1,939.20

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Solution

The fourth proportional to 3,117.74, 4,304.04 and 1,939.20 is: 2,677.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.74 : 4,304.04 = 1,939.20 : x
  2. Step 2: Convert to fraction form
    3,117.74/4,304.04 = 1,939.20/x
  3. Step 3: Cross multiply
    3,117.74x = 4,304.04 × 1,939.20
  4. Step 4: Simplify right side
    3,117.74x = 8,346,394.37
  5. Step 5: Solve for x
    x = 8,346,394.37/3,117.74
  6. Step 6: Final answer
    x = 2,677.07

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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.