Home / 5,619.36-8,424.16-2,154.18

Finding the Fourth Proportional to 5,619.36, 8,424.16 and 2,154.18

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Solution

The fourth proportional to 5,619.36, 8,424.16 and 2,154.18 is: 3,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.36 : 8,424.16 = 2,154.18 : x
  2. Step 2: Convert to fraction form
    5,619.36/8,424.16 = 2,154.18/x
  3. Step 3: Cross multiply
    5,619.36x = 8,424.16 × 2,154.18
  4. Step 4: Simplify right side
    5,619.36x = 18,147,156.99
  5. Step 5: Solve for x
    x = 18,147,156.99/5,619.36
  6. Step 6: Final answer
    x = 3,229.40

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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.