Home / 2,239.59-3,090.16-1,355.46

Finding the Fourth Proportional to 2,239.59, 3,090.16 and 1,355.46

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Solution

The fourth proportional to 2,239.59, 3,090.16 and 1,355.46 is: 1,870.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.59 : 3,090.16 = 1,355.46 : x
  2. Step 2: Convert to fraction form
    2,239.59/3,090.16 = 1,355.46/x
  3. Step 3: Cross multiply
    2,239.59x = 3,090.16 × 1,355.46
  4. Step 4: Simplify right side
    2,239.59x = 4,188,566.05
  5. Step 5: Solve for x
    x = 4,188,566.05/2,239.59
  6. Step 6: Final answer
    x = 1,870.24

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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.