Home / 3,421.86-5,125.83-2,545.30

Finding the Fourth Proportional to 3,421.86, 5,125.83 and 2,545.30

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Solution

The fourth proportional to 3,421.86, 5,125.83 and 2,545.30 is: 3,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.86 : 5,125.83 = 2,545.30 : x
  2. Step 2: Convert to fraction form
    3,421.86/5,125.83 = 2,545.30/x
  3. Step 3: Cross multiply
    3,421.86x = 5,125.83 × 2,545.30
  4. Step 4: Simplify right side
    3,421.86x = 13,046,775.10
  5. Step 5: Solve for x
    x = 13,046,775.10/3,421.86
  6. Step 6: Final answer
    x = 3,812.77

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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.