Home / 3,701.23-5,107.65-2,129.35

Finding the Fourth Proportional to 3,701.23, 5,107.65 and 2,129.35

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Solution

The fourth proportional to 3,701.23, 5,107.65 and 2,129.35 is: 2,938.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.23 : 5,107.65 = 2,129.35 : x
  2. Step 2: Convert to fraction form
    3,701.23/5,107.65 = 2,129.35/x
  3. Step 3: Cross multiply
    3,701.23x = 5,107.65 × 2,129.35
  4. Step 4: Simplify right side
    3,701.23x = 10,875,974.53
  5. Step 5: Solve for x
    x = 10,875,974.53/3,701.23
  6. Step 6: Final answer
    x = 2,938.48

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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.