Home / 2,113.40-3,168.30-1,894.70

Finding the Fourth Proportional to 2,113.40, 3,168.30 and 1,894.70

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Solution

The fourth proportional to 2,113.40, 3,168.30 and 1,894.70 is: 2,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.40 : 3,168.30 = 1,894.70 : x
  2. Step 2: Convert to fraction form
    2,113.40/3,168.30 = 1,894.70/x
  3. Step 3: Cross multiply
    2,113.40x = 3,168.30 × 1,894.70
  4. Step 4: Simplify right side
    2,113.40x = 6,002,978.01
  5. Step 5: Solve for x
    x = 6,002,978.01/2,113.40
  6. Step 6: Final answer
    x = 2,840.44

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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.