Home / 2,699.18-3,724.74-1,520.22

Finding the Fourth Proportional to 2,699.18, 3,724.74 and 1,520.22

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Solution

The fourth proportional to 2,699.18, 3,724.74 and 1,520.22 is: 2,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.18 : 3,724.74 = 1,520.22 : x
  2. Step 2: Convert to fraction form
    2,699.18/3,724.74 = 1,520.22/x
  3. Step 3: Cross multiply
    2,699.18x = 3,724.74 × 1,520.22
  4. Step 4: Simplify right side
    2,699.18x = 5,662,424.24
  5. Step 5: Solve for x
    x = 5,662,424.24/2,699.18
  6. Step 6: Final answer
    x = 2,097.83

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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.