Home / 2,688.75-3,710.63-1,790.93

Finding the Fourth Proportional to 2,688.75, 3,710.63 and 1,790.93

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Solution

The fourth proportional to 2,688.75, 3,710.63 and 1,790.93 is: 2,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.75 : 3,710.63 = 1,790.93 : x
  2. Step 2: Convert to fraction form
    2,688.75/3,710.63 = 1,790.93/x
  3. Step 3: Cross multiply
    2,688.75x = 3,710.63 × 1,790.93
  4. Step 4: Simplify right side
    2,688.75x = 6,645,478.59
  5. Step 5: Solve for x
    x = 6,645,478.59/2,688.75
  6. Step 6: Final answer
    x = 2,471.59

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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.