Home / 2,370.35-3,555.11-638.57

Finding the Fourth Proportional to 2,370.35, 3,555.11 and 638.57

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Solution

The fourth proportional to 2,370.35, 3,555.11 and 638.57 is: 957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.35 : 3,555.11 = 638.57 : x
  2. Step 2: Convert to fraction form
    2,370.35/3,555.11 = 638.57/x
  3. Step 3: Cross multiply
    2,370.35x = 3,555.11 × 638.57
  4. Step 4: Simplify right side
    2,370.35x = 2,270,168.82
  5. Step 5: Solve for x
    x = 2,270,168.82/2,370.35
  6. Step 6: Final answer
    x = 957.74

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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.