Home / 2,387.58-3,297.30-1,643.46

Finding the Fourth Proportional to 2,387.58, 3,297.30 and 1,643.46

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Solution

The fourth proportional to 2,387.58, 3,297.30 and 1,643.46 is: 2,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.58 : 3,297.30 = 1,643.46 : x
  2. Step 2: Convert to fraction form
    2,387.58/3,297.30 = 1,643.46/x
  3. Step 3: Cross multiply
    2,387.58x = 3,297.30 × 1,643.46
  4. Step 4: Simplify right side
    2,387.58x = 5,418,980.66
  5. Step 5: Solve for x
    x = 5,418,980.66/2,387.58
  6. Step 6: Final answer
    x = 2,269.65

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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.