Home / 1,038.24-1,557.86-605.43

Finding the Fourth Proportional to 1,038.24, 1,557.86 and 605.43

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Solution

The fourth proportional to 1,038.24, 1,557.86 and 605.43 is: 908.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.24 : 1,557.86 = 605.43 : x
  2. Step 2: Convert to fraction form
    1,038.24/1,557.86 = 605.43/x
  3. Step 3: Cross multiply
    1,038.24x = 1,557.86 × 605.43
  4. Step 4: Simplify right side
    1,038.24x = 943,172.15
  5. Step 5: Solve for x
    x = 943,172.15/1,038.24
  6. Step 6: Final answer
    x = 908.43

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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.