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Finding the Fourth Proportional to 2,854.84, 4,284.06 and 1,123.24

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Solution

The fourth proportional to 2,854.84, 4,284.06 and 1,123.24 is: 1,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.84 : 4,284.06 = 1,123.24 : x
  2. Step 2: Convert to fraction form
    2,854.84/4,284.06 = 1,123.24/x
  3. Step 3: Cross multiply
    2,854.84x = 4,284.06 × 1,123.24
  4. Step 4: Simplify right side
    2,854.84x = 4,812,027.55
  5. Step 5: Solve for x
    x = 4,812,027.55/2,854.84
  6. Step 6: Final answer
    x = 1,685.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.