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Finding the Fourth Proportional to 3,215.37, 4,435.37 and 1,888.83

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Solution

The fourth proportional to 3,215.37, 4,435.37 and 1,888.83 is: 2,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.37 : 4,435.37 = 1,888.83 : x
  2. Step 2: Convert to fraction form
    3,215.37/4,435.37 = 1,888.83/x
  3. Step 3: Cross multiply
    3,215.37x = 4,435.37 × 1,888.83
  4. Step 4: Simplify right side
    3,215.37x = 8,377,650.47
  5. Step 5: Solve for x
    x = 8,377,650.47/3,215.37
  6. Step 6: Final answer
    x = 2,605.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.