Home / 2,219.84-3,060.42-1,591.28

Finding the Fourth Proportional to 2,219.84, 3,060.42 and 1,591.28

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Solution

The fourth proportional to 2,219.84, 3,060.42 and 1,591.28 is: 2,193.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.84 : 3,060.42 = 1,591.28 : x
  2. Step 2: Convert to fraction form
    2,219.84/3,060.42 = 1,591.28/x
  3. Step 3: Cross multiply
    2,219.84x = 3,060.42 × 1,591.28
  4. Step 4: Simplify right side
    2,219.84x = 4,869,985.14
  5. Step 5: Solve for x
    x = 4,869,985.14/2,219.84
  6. Step 6: Final answer
    x = 2,193.85

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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.