Home / 1,399.04-2,098.26-577.10

Finding the Fourth Proportional to 1,399.04, 2,098.26 and 577.10

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Solution

The fourth proportional to 1,399.04, 2,098.26 and 577.10 is: 865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399.04 : 2,098.26 = 577.10 : x
  2. Step 2: Convert to fraction form
    1,399.04/2,098.26 = 577.10/x
  3. Step 3: Cross multiply
    1,399.04x = 2,098.26 × 577.10
  4. Step 4: Simplify right side
    1,399.04x = 1,210,905.85
  5. Step 5: Solve for x
    x = 1,210,905.85/1,399.04
  6. Step 6: Final answer
    x = 865.53

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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.