Home / 2,756.23-4,134.75-808.18

Finding the Fourth Proportional to 2,756.23, 4,134.75 and 808.18

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Solution

The fourth proportional to 2,756.23, 4,134.75 and 808.18 is: 1,212.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.23 : 4,134.75 = 808.18 : x
  2. Step 2: Convert to fraction form
    2,756.23/4,134.75 = 808.18/x
  3. Step 3: Cross multiply
    2,756.23x = 4,134.75 × 808.18
  4. Step 4: Simplify right side
    2,756.23x = 3,341,622.26
  5. Step 5: Solve for x
    x = 3,341,622.26/2,756.23
  6. Step 6: Final answer
    x = 1,212.39

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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.