Home / 7,839.86-10,819.13-4,303.40

Finding the Fourth Proportional to 7,839.86, 10,819.13 and 4,303.40

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Solution

The fourth proportional to 7,839.86, 10,819.13 and 4,303.40 is: 5,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.86 : 10,819.13 = 4,303.40 : x
  2. Step 2: Convert to fraction form
    7,839.86/10,819.13 = 4,303.40/x
  3. Step 3: Cross multiply
    7,839.86x = 10,819.13 × 4,303.40
  4. Step 4: Simplify right side
    7,839.86x = 46,558,989.95
  5. Step 5: Solve for x
    x = 46,558,989.95/7,839.86
  6. Step 6: Final answer
    x = 5,938.76

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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.