Home / 1,458.26-2,011.51-933.38

Finding the Fourth Proportional to 1,458.26, 2,011.51 and 933.38

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Solution

The fourth proportional to 1,458.26, 2,011.51 and 933.38 is: 1,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.26 : 2,011.51 = 933.38 : x
  2. Step 2: Convert to fraction form
    1,458.26/2,011.51 = 933.38/x
  3. Step 3: Cross multiply
    1,458.26x = 2,011.51 × 933.38
  4. Step 4: Simplify right side
    1,458.26x = 1,877,505.90
  5. Step 5: Solve for x
    x = 1,877,505.90/1,458.26
  6. Step 6: Final answer
    x = 1,287.50

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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.