Home / 3,122.84-4,705.68-2,587.04

Finding the Fourth Proportional to 3,122.84, 4,705.68 and 2,587.04

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Solution

The fourth proportional to 3,122.84, 4,705.68 and 2,587.04 is: 3,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.84 : 4,705.68 = 2,587.04 : x
  2. Step 2: Convert to fraction form
    3,122.84/4,705.68 = 2,587.04/x
  3. Step 3: Cross multiply
    3,122.84x = 4,705.68 × 2,587.04
  4. Step 4: Simplify right side
    3,122.84x = 12,173,782.39
  5. Step 5: Solve for x
    x = 12,173,782.39/3,122.84
  6. Step 6: Final answer
    x = 3,898.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.