Home / 3,219.08-4,442.16-1,821.76

Finding the Fourth Proportional to 3,219.08, 4,442.16 and 1,821.76

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Solution

The fourth proportional to 3,219.08, 4,442.16 and 1,821.76 is: 2,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.08 : 4,442.16 = 1,821.76 : x
  2. Step 2: Convert to fraction form
    3,219.08/4,442.16 = 1,821.76/x
  3. Step 3: Cross multiply
    3,219.08x = 4,442.16 × 1,821.76
  4. Step 4: Simplify right side
    3,219.08x = 8,092,549.40
  5. Step 5: Solve for x
    x = 8,092,549.40/3,219.08
  6. Step 6: Final answer
    x = 2,513.93

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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.