Home / 1,818.18-2,508.47-1,109.84

Finding the Fourth Proportional to 1,818.18, 2,508.47 and 1,109.84

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Solution

The fourth proportional to 1,818.18, 2,508.47 and 1,109.84 is: 1,531.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.18 : 2,508.47 = 1,109.84 : x
  2. Step 2: Convert to fraction form
    1,818.18/2,508.47 = 1,109.84/x
  3. Step 3: Cross multiply
    1,818.18x = 2,508.47 × 1,109.84
  4. Step 4: Simplify right side
    1,818.18x = 2,783,986.42
  5. Step 5: Solve for x
    x = 2,783,986.42/1,818.18
  6. Step 6: Final answer
    x = 1,531.19

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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.