Home / 2,909.05-4,343.87-2,285.76

Finding the Fourth Proportional to 2,909.05, 4,343.87 and 2,285.76

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Solution

The fourth proportional to 2,909.05, 4,343.87 and 2,285.76 is: 3,413.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.05 : 4,343.87 = 2,285.76 : x
  2. Step 2: Convert to fraction form
    2,909.05/4,343.87 = 2,285.76/x
  3. Step 3: Cross multiply
    2,909.05x = 4,343.87 × 2,285.76
  4. Step 4: Simplify right side
    2,909.05x = 9,929,044.29
  5. Step 5: Solve for x
    x = 9,929,044.29/2,909.05
  6. Step 6: Final answer
    x = 3,413.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.