Home / 2,439.51-3,678.40-2,235.39

Finding the Fourth Proportional to 2,439.51, 3,678.40 and 2,235.39

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Solution

The fourth proportional to 2,439.51, 3,678.40 and 2,235.39 is: 3,370.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.51 : 3,678.40 = 2,235.39 : x
  2. Step 2: Convert to fraction form
    2,439.51/3,678.40 = 2,235.39/x
  3. Step 3: Cross multiply
    2,439.51x = 3,678.40 × 2,235.39
  4. Step 4: Simplify right side
    2,439.51x = 8,222,658.58
  5. Step 5: Solve for x
    x = 8,222,658.58/2,439.51
  6. Step 6: Final answer
    x = 3,370.62

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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.