Home / 2,048.49-2,827.11-1,209.45

Finding the Fourth Proportional to 2,048.49, 2,827.11 and 1,209.45

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Solution

The fourth proportional to 2,048.49, 2,827.11 and 1,209.45 is: 1,669.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.49 : 2,827.11 = 1,209.45 : x
  2. Step 2: Convert to fraction form
    2,048.49/2,827.11 = 1,209.45/x
  3. Step 3: Cross multiply
    2,048.49x = 2,827.11 × 1,209.45
  4. Step 4: Simplify right side
    2,048.49x = 3,419,248.19
  5. Step 5: Solve for x
    x = 3,419,248.19/2,048.49
  6. Step 6: Final answer
    x = 1,669.16

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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.