Home / 1,475.58-2,036.95-1,121.57

Finding the Fourth Proportional to 1,475.58, 2,036.95 and 1,121.57

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Solution

The fourth proportional to 1,475.58, 2,036.95 and 1,121.57 is: 1,548.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.58 : 2,036.95 = 1,121.57 : x
  2. Step 2: Convert to fraction form
    1,475.58/2,036.95 = 1,121.57/x
  3. Step 3: Cross multiply
    1,475.58x = 2,036.95 × 1,121.57
  4. Step 4: Simplify right side
    1,475.58x = 2,284,576.66
  5. Step 5: Solve for x
    x = 2,284,576.66/1,475.58
  6. Step 6: Final answer
    x = 1,548.25

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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.