Home / 2,809.34-3,877.11-1,550.51

Finding the Fourth Proportional to 2,809.34, 3,877.11 and 1,550.51

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Solution

The fourth proportional to 2,809.34, 3,877.11 and 1,550.51 is: 2,139.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.34 : 3,877.11 = 1,550.51 : x
  2. Step 2: Convert to fraction form
    2,809.34/3,877.11 = 1,550.51/x
  3. Step 3: Cross multiply
    2,809.34x = 3,877.11 × 1,550.51
  4. Step 4: Simplify right side
    2,809.34x = 6,011,497.83
  5. Step 5: Solve for x
    x = 6,011,497.83/2,809.34
  6. Step 6: Final answer
    x = 2,139.83

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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.