Home / 2,011.47-2,776.82-1,382.23

Finding the Fourth Proportional to 2,011.47, 2,776.82 and 1,382.23

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Solution

The fourth proportional to 2,011.47, 2,776.82 and 1,382.23 is: 1,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.47 : 2,776.82 = 1,382.23 : x
  2. Step 2: Convert to fraction form
    2,011.47/2,776.82 = 1,382.23/x
  3. Step 3: Cross multiply
    2,011.47x = 2,776.82 × 1,382.23
  4. Step 4: Simplify right side
    2,011.47x = 3,838,203.91
  5. Step 5: Solve for x
    x = 3,838,203.91/2,011.47
  6. Step 6: Final answer
    x = 1,908.16

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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.