Home / 3,100.08-4,278.01-1,683.70

Finding the Fourth Proportional to 3,100.08, 4,278.01 and 1,683.70

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Solution

The fourth proportional to 3,100.08, 4,278.01 and 1,683.70 is: 2,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.08 : 4,278.01 = 1,683.70 : x
  2. Step 2: Convert to fraction form
    3,100.08/4,278.01 = 1,683.70/x
  3. Step 3: Cross multiply
    3,100.08x = 4,278.01 × 1,683.70
  4. Step 4: Simplify right side
    3,100.08x = 7,202,885.44
  5. Step 5: Solve for x
    x = 7,202,885.44/3,100.08
  6. Step 6: Final answer
    x = 2,323.45

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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.