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Finding the Fourth Proportional to 2,838.70, 4,262.10 and 2,223.10

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Solution

The fourth proportional to 2,838.70, 4,262.10 and 2,223.10 is: 3,337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.70 : 4,262.10 = 2,223.10 : x
  2. Step 2: Convert to fraction form
    2,838.70/4,262.10 = 2,223.10/x
  3. Step 3: Cross multiply
    2,838.70x = 4,262.10 × 2,223.10
  4. Step 4: Simplify right side
    2,838.70x = 9,475,074.51
  5. Step 5: Solve for x
    x = 9,475,074.51/2,838.70
  6. Step 6: Final answer
    x = 3,337.82

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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.