Home / 7,105.30-10,657.99-1,839.95

Finding the Fourth Proportional to 7,105.30, 10,657.99 and 1,839.95

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Solution

The fourth proportional to 7,105.30, 10,657.99 and 1,839.95 is: 2,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.30 : 10,657.99 = 1,839.95 : x
  2. Step 2: Convert to fraction form
    7,105.30/10,657.99 = 1,839.95/x
  3. Step 3: Cross multiply
    7,105.30x = 10,657.99 × 1,839.95
  4. Step 4: Simplify right side
    7,105.30x = 19,610,115.41
  5. Step 5: Solve for x
    x = 19,610,115.41/7,105.30
  6. Step 6: Final answer
    x = 2,759.93

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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.