Home / 7,781.15-10,738.13-4,244.35

Finding the Fourth Proportional to 7,781.15, 10,738.13 and 4,244.35

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Solution

The fourth proportional to 7,781.15, 10,738.13 and 4,244.35 is: 5,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.15 : 10,738.13 = 4,244.35 : x
  2. Step 2: Convert to fraction form
    7,781.15/10,738.13 = 4,244.35/x
  3. Step 3: Cross multiply
    7,781.15x = 10,738.13 × 4,244.35
  4. Step 4: Simplify right side
    7,781.15x = 45,576,382.07
  5. Step 5: Solve for x
    x = 45,576,382.07/7,781.15
  6. Step 6: Final answer
    x = 5,857.28

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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.