Home / 5,620.02-8,434.38-2,113.21

Finding the Fourth Proportional to 5,620.02, 8,434.38 and 2,113.21

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Solution

The fourth proportional to 5,620.02, 8,434.38 and 2,113.21 is: 3,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.02 : 8,434.38 = 2,113.21 : x
  2. Step 2: Convert to fraction form
    5,620.02/8,434.38 = 2,113.21/x
  3. Step 3: Cross multiply
    5,620.02x = 8,434.38 × 2,113.21
  4. Step 4: Simplify right side
    5,620.02x = 17,823,616.16
  5. Step 5: Solve for x
    x = 17,823,616.16/5,620.02
  6. Step 6: Final answer
    x = 3,171.45

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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.