Home / 1,567.90-2,163.26-938.14

Finding the Fourth Proportional to 1,567.90, 2,163.26 and 938.14

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Solution

The fourth proportional to 1,567.90, 2,163.26 and 938.14 is: 1,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.90 : 2,163.26 = 938.14 : x
  2. Step 2: Convert to fraction form
    1,567.90/2,163.26 = 938.14/x
  3. Step 3: Cross multiply
    1,567.90x = 2,163.26 × 938.14
  4. Step 4: Simplify right side
    1,567.90x = 2,029,440.74
  5. Step 5: Solve for x
    x = 2,029,440.74/1,567.90
  6. Step 6: Final answer
    x = 1,294.37

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1.5x scale

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.