Home / 3,215.88-4,436.02-1,973

Finding the Fourth Proportional to 3,215.88, 4,436.02 and 1,973

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Solution

The fourth proportional to 3,215.88, 4,436.02 and 1,973 is: 2,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.88 : 4,436.02 = 1,973 : x
  2. Step 2: Convert to fraction form
    3,215.88/4,436.02 = 1,973/x
  3. Step 3: Cross multiply
    3,215.88x = 4,436.02 × 1,973
  4. Step 4: Simplify right side
    3,215.88x = 8,752,267.46
  5. Step 5: Solve for x
    x = 8,752,267.46/3,215.88
  6. Step 6: Final answer
    x = 2,721.58

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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.