Home / 2,219.20-3,063.36-1,985.92

Finding the Fourth Proportional to 2,219.20, 3,063.36 and 1,985.92

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Solution

The fourth proportional to 2,219.20, 3,063.36 and 1,985.92 is: 2,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.20 : 3,063.36 = 1,985.92 : x
  2. Step 2: Convert to fraction form
    2,219.20/3,063.36 = 1,985.92/x
  3. Step 3: Cross multiply
    2,219.20x = 3,063.36 × 1,985.92
  4. Step 4: Simplify right side
    2,219.20x = 6,083,587.89
  5. Step 5: Solve for x
    x = 6,083,587.89/2,219.20
  6. Step 6: Final answer
    x = 2,741.34

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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.