Home / 2,219.96-3,330.30-1,065.72

Finding the Fourth Proportional to 2,219.96, 3,330.30 and 1,065.72

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Solution

The fourth proportional to 2,219.96, 3,330.30 and 1,065.72 is: 1,598.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.96 : 3,330.30 = 1,065.72 : x
  2. Step 2: Convert to fraction form
    2,219.96/3,330.30 = 1,065.72/x
  3. Step 3: Cross multiply
    2,219.96x = 3,330.30 × 1,065.72
  4. Step 4: Simplify right side
    2,219.96x = 3,549,167.32
  5. Step 5: Solve for x
    x = 3,549,167.32/2,219.96
  6. Step 6: Final answer
    x = 1,598.75

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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.