Home / 2,142.84-2,956.95-1,246.44

Finding the Fourth Proportional to 2,142.84, 2,956.95 and 1,246.44

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Solution

The fourth proportional to 2,142.84, 2,956.95 and 1,246.44 is: 1,719.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.84 : 2,956.95 = 1,246.44 : x
  2. Step 2: Convert to fraction form
    2,142.84/2,956.95 = 1,246.44/x
  3. Step 3: Cross multiply
    2,142.84x = 2,956.95 × 1,246.44
  4. Step 4: Simplify right side
    2,142.84x = 3,685,660.76
  5. Step 5: Solve for x
    x = 3,685,660.76/2,142.84
  6. Step 6: Final answer
    x = 1,719.99

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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.