Home / 2,143.19-2,964.13-1,922.06

Finding the Fourth Proportional to 2,143.19, 2,964.13 and 1,922.06

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Solution

The fourth proportional to 2,143.19, 2,964.13 and 1,922.06 is: 2,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.19 : 2,964.13 = 1,922.06 : x
  2. Step 2: Convert to fraction form
    2,143.19/2,964.13 = 1,922.06/x
  3. Step 3: Cross multiply
    2,143.19x = 2,964.13 × 1,922.06
  4. Step 4: Simplify right side
    2,143.19x = 5,697,238.31
  5. Step 5: Solve for x
    x = 5,697,238.31/2,143.19
  6. Step 6: Final answer
    x = 2,658.30

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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.