Home / 7,781.08-10,738.27-4,379.15

Finding the Fourth Proportional to 7,781.08, 10,738.27 and 4,379.15

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Solution

The fourth proportional to 7,781.08, 10,738.27 and 4,379.15 is: 6,043.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.08 : 10,738.27 = 4,379.15 : x
  2. Step 2: Convert to fraction form
    7,781.08/10,738.27 = 4,379.15/x
  3. Step 3: Cross multiply
    7,781.08x = 10,738.27 × 4,379.15
  4. Step 4: Simplify right side
    7,781.08x = 47,024,495.07
  5. Step 5: Solve for x
    x = 47,024,495.07/7,781.08
  6. Step 6: Final answer
    x = 6,043.44

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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.