Home / 3,707.76-5,116.70-2,135.84

Finding the Fourth Proportional to 3,707.76, 5,116.70 and 2,135.84

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Solution

The fourth proportional to 3,707.76, 5,116.70 and 2,135.84 is: 2,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.76 : 5,116.70 = 2,135.84 : x
  2. Step 2: Convert to fraction form
    3,707.76/5,116.70 = 2,135.84/x
  3. Step 3: Cross multiply
    3,707.76x = 5,116.70 × 2,135.84
  4. Step 4: Simplify right side
    3,707.76x = 10,928,452.53
  5. Step 5: Solve for x
    x = 10,928,452.53/3,707.76
  6. Step 6: Final answer
    x = 2,947.45

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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.