Home / 3,710.40-5,121.39-2,766.34

Finding the Fourth Proportional to 3,710.40, 5,121.39 and 2,766.34

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Solution

The fourth proportional to 3,710.40, 5,121.39 and 2,766.34 is: 3,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.40 : 5,121.39 = 2,766.34 : x
  2. Step 2: Convert to fraction form
    3,710.40/5,121.39 = 2,766.34/x
  3. Step 3: Cross multiply
    3,710.40x = 5,121.39 × 2,766.34
  4. Step 4: Simplify right side
    3,710.40x = 14,167,506.01
  5. Step 5: Solve for x
    x = 14,167,506.01/3,710.40
  6. Step 6: Final answer
    x = 3,818.32

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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.