Home / 6,545.45-9,820.79-2,385.75

Finding the Fourth Proportional to 6,545.45, 9,820.79 and 2,385.75

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Solution

The fourth proportional to 6,545.45, 9,820.79 and 2,385.75 is: 3,579.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,545.45 : 9,820.79 = 2,385.75 : x
  2. Step 2: Convert to fraction form
    6,545.45/9,820.79 = 2,385.75/x
  3. Step 3: Cross multiply
    6,545.45x = 9,820.79 × 2,385.75
  4. Step 4: Simplify right side
    6,545.45x = 23,429,937.81
  5. Step 5: Solve for x
    x = 23,429,937.81/6,545.45
  6. Step 6: Final answer
    x = 3,579.58

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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.