Home / 1,531.38-2,113.14-1,364.94

Finding the Fourth Proportional to 1,531.38, 2,113.14 and 1,364.94

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Solution

The fourth proportional to 1,531.38, 2,113.14 and 1,364.94 is: 1,883.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.38 : 2,113.14 = 1,364.94 : x
  2. Step 2: Convert to fraction form
    1,531.38/2,113.14 = 1,364.94/x
  3. Step 3: Cross multiply
    1,531.38x = 2,113.14 × 1,364.94
  4. Step 4: Simplify right side
    1,531.38x = 2,884,309.31
  5. Step 5: Solve for x
    x = 2,884,309.31/1,531.38
  6. Step 6: Final answer
    x = 1,883.47

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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.