Home / 5,111.58-7,053.48-2,872.95

Finding the Fourth Proportional to 5,111.58, 7,053.48 and 2,872.95

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Solution

The fourth proportional to 5,111.58, 7,053.48 and 2,872.95 is: 3,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.58 : 7,053.48 = 2,872.95 : x
  2. Step 2: Convert to fraction form
    5,111.58/7,053.48 = 2,872.95/x
  3. Step 3: Cross multiply
    5,111.58x = 7,053.48 × 2,872.95
  4. Step 4: Simplify right side
    5,111.58x = 20,264,295.37
  5. Step 5: Solve for x
    x = 20,264,295.37/5,111.58
  6. Step 6: Final answer
    x = 3,964.39

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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.