Home / 3,117.32-4,302.29-1,938.54

Finding the Fourth Proportional to 3,117.32, 4,302.29 and 1,938.54

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Solution

The fourth proportional to 3,117.32, 4,302.29 and 1,938.54 is: 2,675.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.32 : 4,302.29 = 1,938.54 : x
  2. Step 2: Convert to fraction form
    3,117.32/4,302.29 = 1,938.54/x
  3. Step 3: Cross multiply
    3,117.32x = 4,302.29 × 1,938.54
  4. Step 4: Simplify right side
    3,117.32x = 8,340,166.10
  5. Step 5: Solve for x
    x = 8,340,166.10/3,117.32
  6. Step 6: Final answer
    x = 2,675.43

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Double scale
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Similar ratio
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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.