Home / 6,941.88-10,412.28-2,781.72

Finding the Fourth Proportional to 6,941.88, 10,412.28 and 2,781.72

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Solution

The fourth proportional to 6,941.88, 10,412.28 and 2,781.72 is: 4,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,941.88 : 10,412.28 = 2,781.72 : x
  2. Step 2: Convert to fraction form
    6,941.88/10,412.28 = 2,781.72/x
  3. Step 3: Cross multiply
    6,941.88x = 10,412.28 × 2,781.72
  4. Step 4: Simplify right side
    6,941.88x = 28,964,047.52
  5. Step 5: Solve for x
    x = 28,964,047.52/6,941.88
  6. Step 6: Final answer
    x = 4,172.36

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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.