Home / 2,202.36-3,038.10-1,317.90

Finding the Fourth Proportional to 2,202.36, 3,038.10 and 1,317.90

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Solution

The fourth proportional to 2,202.36, 3,038.10 and 1,317.90 is: 1,818.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.36 : 3,038.10 = 1,317.90 : x
  2. Step 2: Convert to fraction form
    2,202.36/3,038.10 = 1,317.90/x
  3. Step 3: Cross multiply
    2,202.36x = 3,038.10 × 1,317.90
  4. Step 4: Simplify right side
    2,202.36x = 4,003,911.99
  5. Step 5: Solve for x
    x = 4,003,911.99/2,202.36
  6. Step 6: Final answer
    x = 1,818.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.