Home / 3,545.40-4,894.38-2,219.84

Finding the Fourth Proportional to 3,545.40, 4,894.38 and 2,219.84

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Solution

The fourth proportional to 3,545.40, 4,894.38 and 2,219.84 is: 3,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.40 : 4,894.38 = 2,219.84 : x
  2. Step 2: Convert to fraction form
    3,545.40/4,894.38 = 2,219.84/x
  3. Step 3: Cross multiply
    3,545.40x = 4,894.38 × 2,219.84
  4. Step 4: Simplify right side
    3,545.40x = 10,864,740.50
  5. Step 5: Solve for x
    x = 10,864,740.50/3,545.40
  6. Step 6: Final answer
    x = 3,064.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.