Home / 5,158.50-7,737.75-2,850

Finding the Fourth Proportional to 5,158.50, 7,737.75 and 2,850

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Solution

The fourth proportional to 5,158.50, 7,737.75 and 2,850 is: 4,275

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.50 : 7,737.75 = 2,850 : x
  2. Step 2: Convert to fraction form
    5,158.50/7,737.75 = 2,850/x
  3. Step 3: Cross multiply
    5,158.50x = 7,737.75 × 2,850
  4. Step 4: Simplify right side
    5,158.50x = 22,052,587.50
  5. Step 5: Solve for x
    x = 22,052,587.50/5,158.50
  6. Step 6: Final answer
    x = 4,275

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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.