Home / 2,214.15-3,319.59-1,869.69

Finding the Fourth Proportional to 2,214.15, 3,319.59 and 1,869.69

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Solution

The fourth proportional to 2,214.15, 3,319.59 and 1,869.69 is: 2,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.15 : 3,319.59 = 1,869.69 : x
  2. Step 2: Convert to fraction form
    2,214.15/3,319.59 = 1,869.69/x
  3. Step 3: Cross multiply
    2,214.15x = 3,319.59 × 1,869.69
  4. Step 4: Simplify right side
    2,214.15x = 6,206,604.23
  5. Step 5: Solve for x
    x = 6,206,604.23/2,214.15
  6. Step 6: Final answer
    x = 2,803.15

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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.