Home / 2,239.83-3,357-1,690.29

Finding the Fourth Proportional to 2,239.83, 3,357 and 1,690.29

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Solution

The fourth proportional to 2,239.83, 3,357 and 1,690.29 is: 2,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.83 : 3,357 = 1,690.29 : x
  2. Step 2: Convert to fraction form
    2,239.83/3,357 = 1,690.29/x
  3. Step 3: Cross multiply
    2,239.83x = 3,357 × 1,690.29
  4. Step 4: Simplify right side
    2,239.83x = 5,674,303.53
  5. Step 5: Solve for x
    x = 5,674,303.53/2,239.83
  6. Step 6: Final answer
    x = 2,533.36

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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.