Home / 2,124.63-2,932.38-1,228.91

Finding the Fourth Proportional to 2,124.63, 2,932.38 and 1,228.91

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Solution

The fourth proportional to 2,124.63, 2,932.38 and 1,228.91 is: 1,696.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.63 : 2,932.38 = 1,228.91 : x
  2. Step 2: Convert to fraction form
    2,124.63/2,932.38 = 1,228.91/x
  3. Step 3: Cross multiply
    2,124.63x = 2,932.38 × 1,228.91
  4. Step 4: Simplify right side
    2,124.63x = 3,603,616.44
  5. Step 5: Solve for x
    x = 3,603,616.44/2,124.63
  6. Step 6: Final answer
    x = 1,696.11

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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.