Home / 1,657.17-2,485.33-683.96

Finding the Fourth Proportional to 1,657.17, 2,485.33 and 683.96

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Solution

The fourth proportional to 1,657.17, 2,485.33 and 683.96 is: 1,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.17 : 2,485.33 = 683.96 : x
  2. Step 2: Convert to fraction form
    1,657.17/2,485.33 = 683.96/x
  3. Step 3: Cross multiply
    1,657.17x = 2,485.33 × 683.96
  4. Step 4: Simplify right side
    1,657.17x = 1,699,852.17
  5. Step 5: Solve for x
    x = 1,699,852.17/1,657.17
  6. Step 6: Final answer
    x = 1,025.76

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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.