Home / 2,855.84-4,281.30-1,124.12

Finding the Fourth Proportional to 2,855.84, 4,281.30 and 1,124.12

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Solution

The fourth proportional to 2,855.84, 4,281.30 and 1,124.12 is: 1,685.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.84 : 4,281.30 = 1,124.12 : x
  2. Step 2: Convert to fraction form
    2,855.84/4,281.30 = 1,124.12/x
  3. Step 3: Cross multiply
    2,855.84x = 4,281.30 × 1,124.12
  4. Step 4: Simplify right side
    2,855.84x = 4,812,694.96
  5. Step 5: Solve for x
    x = 4,812,694.96/2,855.84
  6. Step 6: Final answer
    x = 1,685.21

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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.