Home / 2,048.66-2,827.40-1,209.70

Finding the Fourth Proportional to 2,048.66, 2,827.40 and 1,209.70

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Solution

The fourth proportional to 2,048.66, 2,827.40 and 1,209.70 is: 1,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.66 : 2,827.40 = 1,209.70 : x
  2. Step 2: Convert to fraction form
    2,048.66/2,827.40 = 1,209.70/x
  3. Step 3: Cross multiply
    2,048.66x = 2,827.40 × 1,209.70
  4. Step 4: Simplify right side
    2,048.66x = 3,420,305.78
  5. Step 5: Solve for x
    x = 3,420,305.78/2,048.66
  6. Step 6: Final answer
    x = 1,669.53

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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.