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Finding the Fourth Proportional to 2,800.65, 4,200.93 and 2,338.77

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Solution

The fourth proportional to 2,800.65, 4,200.93 and 2,338.77 is: 3,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.65 : 4,200.93 = 2,338.77 : x
  2. Step 2: Convert to fraction form
    2,800.65/4,200.93 = 2,338.77/x
  3. Step 3: Cross multiply
    2,800.65x = 4,200.93 × 2,338.77
  4. Step 4: Simplify right side
    2,800.65x = 9,825,009.06
  5. Step 5: Solve for x
    x = 9,825,009.06/2,800.65
  6. Step 6: Final answer
    x = 3,508.12

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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.