Home / 3,215.70-4,437.88-1,799.51

Finding the Fourth Proportional to 3,215.70, 4,437.88 and 1,799.51

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Solution

The fourth proportional to 3,215.70, 4,437.88 and 1,799.51 is: 2,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.70 : 4,437.88 = 1,799.51 : x
  2. Step 2: Convert to fraction form
    3,215.70/4,437.88 = 1,799.51/x
  3. Step 3: Cross multiply
    3,215.70x = 4,437.88 × 1,799.51
  4. Step 4: Simplify right side
    3,215.70x = 7,986,009.44
  5. Step 5: Solve for x
    x = 7,986,009.44/3,215.70
  6. Step 6: Final answer
    x = 2,483.44

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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.