Home / 1,485.35-2,228.25-497.86

Finding the Fourth Proportional to 1,485.35, 2,228.25 and 497.86

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Solution

The fourth proportional to 1,485.35, 2,228.25 and 497.86 is: 746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.35 : 2,228.25 = 497.86 : x
  2. Step 2: Convert to fraction form
    1,485.35/2,228.25 = 497.86/x
  3. Step 3: Cross multiply
    1,485.35x = 2,228.25 × 497.86
  4. Step 4: Simplify right side
    1,485.35x = 1,109,356.55
  5. Step 5: Solve for x
    x = 1,109,356.55/1,485.35
  6. Step 6: Final answer
    x = 746.87

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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.