Home / 1,398.23-2,097.06-424.10

Finding the Fourth Proportional to 1,398.23, 2,097.06 and 424.10

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Solution

The fourth proportional to 1,398.23, 2,097.06 and 424.10 is: 636.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398.23 : 2,097.06 = 424.10 : x
  2. Step 2: Convert to fraction form
    1,398.23/2,097.06 = 424.10/x
  3. Step 3: Cross multiply
    1,398.23x = 2,097.06 × 424.10
  4. Step 4: Simplify right side
    1,398.23x = 889,352.66
  5. Step 5: Solve for x
    x = 889,352.66/1,398.23
  6. Step 6: Final answer
    x = 636.06

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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.