Home / 7,077.27-10,611.84-2,920.14

Finding the Fourth Proportional to 7,077.27, 10,611.84 and 2,920.14

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Solution

The fourth proportional to 7,077.27, 10,611.84 and 2,920.14 is: 4,378.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.27 : 10,611.84 = 2,920.14 : x
  2. Step 2: Convert to fraction form
    7,077.27/10,611.84 = 2,920.14/x
  3. Step 3: Cross multiply
    7,077.27x = 10,611.84 × 2,920.14
  4. Step 4: Simplify right side
    7,077.27x = 30,988,058.46
  5. Step 5: Solve for x
    x = 30,988,058.46/7,077.27
  6. Step 6: Final answer
    x = 4,378.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.