Home / 1,293.37-1,939.90-471.57

Finding the Fourth Proportional to 1,293.37, 1,939.90 and 471.57

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Solution

The fourth proportional to 1,293.37, 1,939.90 and 471.57 is: 707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.37 : 1,939.90 = 471.57 : x
  2. Step 2: Convert to fraction form
    1,293.37/1,939.90 = 471.57/x
  3. Step 3: Cross multiply
    1,293.37x = 1,939.90 × 471.57
  4. Step 4: Simplify right side
    1,293.37x = 914,801.99
  5. Step 5: Solve for x
    x = 914,801.99/1,293.37
  6. Step 6: Final answer
    x = 707.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.