Home / 1,417.21-2,122.17-799.99

Finding the Fourth Proportional to 1,417.21, 2,122.17 and 799.99

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Solution

The fourth proportional to 1,417.21, 2,122.17 and 799.99 is: 1,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.21 : 2,122.17 = 799.99 : x
  2. Step 2: Convert to fraction form
    1,417.21/2,122.17 = 799.99/x
  3. Step 3: Cross multiply
    1,417.21x = 2,122.17 × 799.99
  4. Step 4: Simplify right side
    1,417.21x = 1,697,714.78
  5. Step 5: Solve for x
    x = 1,697,714.78/1,417.21
  6. Step 6: Final answer
    x = 1,197.93

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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.