Home / 2,809.08-3,876.55-1,550.18

Finding the Fourth Proportional to 2,809.08, 3,876.55 and 1,550.18

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Solution

The fourth proportional to 2,809.08, 3,876.55 and 1,550.18 is: 2,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.08 : 3,876.55 = 1,550.18 : x
  2. Step 2: Convert to fraction form
    2,809.08/3,876.55 = 1,550.18/x
  3. Step 3: Cross multiply
    2,809.08x = 3,876.55 × 1,550.18
  4. Step 4: Simplify right side
    2,809.08x = 6,009,327.02
  5. Step 5: Solve for x
    x = 6,009,327.02/2,809.08
  6. Step 6: Final answer
    x = 2,139.25

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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.