Home / 2,719.85-3,752.80-1,658.21

Finding the Fourth Proportional to 2,719.85, 3,752.80 and 1,658.21

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Solution

The fourth proportional to 2,719.85, 3,752.80 and 1,658.21 is: 2,287.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.85 : 3,752.80 = 1,658.21 : x
  2. Step 2: Convert to fraction form
    2,719.85/3,752.80 = 1,658.21/x
  3. Step 3: Cross multiply
    2,719.85x = 3,752.80 × 1,658.21
  4. Step 4: Simplify right side
    2,719.85x = 6,222,907.58
  5. Step 5: Solve for x
    x = 6,222,907.58/2,719.85
  6. Step 6: Final answer
    x = 2,287.96

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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.