Home / 1,478.75-2,038.56-1,163.47

Finding the Fourth Proportional to 1,478.75, 2,038.56 and 1,163.47

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Solution

The fourth proportional to 1,478.75, 2,038.56 and 1,163.47 is: 1,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.75 : 2,038.56 = 1,163.47 : x
  2. Step 2: Convert to fraction form
    1,478.75/2,038.56 = 1,163.47/x
  3. Step 3: Cross multiply
    1,478.75x = 2,038.56 × 1,163.47
  4. Step 4: Simplify right side
    1,478.75x = 2,371,805.59
  5. Step 5: Solve for x
    x = 2,371,805.59/1,478.75
  6. Step 6: Final answer
    x = 1,603.92

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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.