Home / 2,818.18-4,228.08-1,778.14

Finding the Fourth Proportional to 2,818.18, 4,228.08 and 1,778.14

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Solution

The fourth proportional to 2,818.18, 4,228.08 and 1,778.14 is: 2,667.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.18 : 4,228.08 = 1,778.14 : x
  2. Step 2: Convert to fraction form
    2,818.18/4,228.08 = 1,778.14/x
  3. Step 3: Cross multiply
    2,818.18x = 4,228.08 × 1,778.14
  4. Step 4: Simplify right side
    2,818.18x = 7,518,118.17
  5. Step 5: Solve for x
    x = 7,518,118.17/2,818.18
  6. Step 6: Final answer
    x = 2,667.72

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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.