Home / 1,113.27-1,669.95-496.86

Finding the Fourth Proportional to 1,113.27, 1,669.95 and 496.86

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Solution

The fourth proportional to 1,113.27, 1,669.95 and 496.86 is: 745.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.27 : 1,669.95 = 496.86 : x
  2. Step 2: Convert to fraction form
    1,113.27/1,669.95 = 496.86/x
  3. Step 3: Cross multiply
    1,113.27x = 1,669.95 × 496.86
  4. Step 4: Simplify right side
    1,113.27x = 829,731.36
  5. Step 5: Solve for x
    x = 829,731.36/1,113.27
  6. Step 6: Final answer
    x = 745.31

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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.