Home / 2,211.90-3,050.91-1,818.24

Finding the Fourth Proportional to 2,211.90, 3,050.91 and 1,818.24

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Solution

The fourth proportional to 2,211.90, 3,050.91 and 1,818.24 is: 2,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.90 : 3,050.91 = 1,818.24 : x
  2. Step 2: Convert to fraction form
    2,211.90/3,050.91 = 1,818.24/x
  3. Step 3: Cross multiply
    2,211.90x = 3,050.91 × 1,818.24
  4. Step 4: Simplify right side
    2,211.90x = 5,547,286.60
  5. Step 5: Solve for x
    x = 5,547,286.60/2,211.90
  6. Step 6: Final answer
    x = 2,507.93

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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.