Home / 2,567.40-3,543-1,388.46

Finding the Fourth Proportional to 2,567.40, 3,543 and 1,388.46

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Solution

The fourth proportional to 2,567.40, 3,543 and 1,388.46 is: 1,916.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,567.40 : 3,543 = 1,388.46 : x
  2. Step 2: Convert to fraction form
    2,567.40/3,543 = 1,388.46/x
  3. Step 3: Cross multiply
    2,567.40x = 3,543 × 1,388.46
  4. Step 4: Simplify right side
    2,567.40x = 4,919,313.78
  5. Step 5: Solve for x
    x = 4,919,313.78/2,567.40
  6. Step 6: Final answer
    x = 1,916.07

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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.