Home / 3,619.24-5,428.86-1,310.74

Finding the Fourth Proportional to 3,619.24, 5,428.86 and 1,310.74

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Solution

The fourth proportional to 3,619.24, 5,428.86 and 1,310.74 is: 1,966.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.24 : 5,428.86 = 1,310.74 : x
  2. Step 2: Convert to fraction form
    3,619.24/5,428.86 = 1,310.74/x
  3. Step 3: Cross multiply
    3,619.24x = 5,428.86 × 1,310.74
  4. Step 4: Simplify right side
    3,619.24x = 7,115,823.96
  5. Step 5: Solve for x
    x = 7,115,823.96/3,619.24
  6. Step 6: Final answer
    x = 1,966.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.