Home / 2,239.57-3,090.13-1,355.46

Finding the Fourth Proportional to 2,239.57, 3,090.13 and 1,355.46

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Solution

The fourth proportional to 2,239.57, 3,090.13 and 1,355.46 is: 1,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.57 : 3,090.13 = 1,355.46 : x
  2. Step 2: Convert to fraction form
    2,239.57/3,090.13 = 1,355.46/x
  3. Step 3: Cross multiply
    2,239.57x = 3,090.13 × 1,355.46
  4. Step 4: Simplify right side
    2,239.57x = 4,188,547.61
  5. Step 5: Solve for x
    x = 4,188,547.61/2,239.57
  6. Step 6: Final answer
    x = 1,870.25

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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.