Home / 2,855.34-4,280.58-1,122.84

Finding the Fourth Proportional to 2,855.34, 4,280.58 and 1,122.84

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Solution

The fourth proportional to 2,855.34, 4,280.58 and 1,122.84 is: 1,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.34 : 4,280.58 = 1,122.84 : x
  2. Step 2: Convert to fraction form
    2,855.34/4,280.58 = 1,122.84/x
  3. Step 3: Cross multiply
    2,855.34x = 4,280.58 × 1,122.84
  4. Step 4: Simplify right side
    2,855.34x = 4,806,406.45
  5. Step 5: Solve for x
    x = 4,806,406.45/2,855.34
  6. Step 6: Final answer
    x = 1,683.30

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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.