Home / 2,145.02-3,217.20-585.14

Finding the Fourth Proportional to 2,145.02, 3,217.20 and 585.14

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Solution

The fourth proportional to 2,145.02, 3,217.20 and 585.14 is: 877.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.02 : 3,217.20 = 585.14 : x
  2. Step 2: Convert to fraction form
    2,145.02/3,217.20 = 585.14/x
  3. Step 3: Cross multiply
    2,145.02x = 3,217.20 × 585.14
  4. Step 4: Simplify right side
    2,145.02x = 1,882,512.41
  5. Step 5: Solve for x
    x = 1,882,512.41/2,145.02
  6. Step 6: Final answer
    x = 877.62

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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.