Home / 2,669.85-3,684.65-1,550.70

Finding the Fourth Proportional to 2,669.85, 3,684.65 and 1,550.70

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Solution

The fourth proportional to 2,669.85, 3,684.65 and 1,550.70 is: 2,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.85 : 3,684.65 = 1,550.70 : x
  2. Step 2: Convert to fraction form
    2,669.85/3,684.65 = 1,550.70/x
  3. Step 3: Cross multiply
    2,669.85x = 3,684.65 × 1,550.70
  4. Step 4: Simplify right side
    2,669.85x = 5,713,779.00
  5. Step 5: Solve for x
    x = 5,713,779.00/2,669.85
  6. Step 6: Final answer
    x = 2,140.11

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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.