Home / 2,143.13-2,956.68-1,346.10

Finding the Fourth Proportional to 2,143.13, 2,956.68 and 1,346.10

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Solution

The fourth proportional to 2,143.13, 2,956.68 and 1,346.10 is: 1,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.13 : 2,956.68 = 1,346.10 : x
  2. Step 2: Convert to fraction form
    2,143.13/2,956.68 = 1,346.10/x
  3. Step 3: Cross multiply
    2,143.13x = 2,956.68 × 1,346.10
  4. Step 4: Simplify right side
    2,143.13x = 3,979,986.95
  5. Step 5: Solve for x
    x = 3,979,986.95/2,143.13
  6. Step 6: Final answer
    x = 1,857.10

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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.