Home / 2,124.67-2,931.66-1,285.26

Finding the Fourth Proportional to 2,124.67, 2,931.66 and 1,285.26

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Solution

The fourth proportional to 2,124.67, 2,931.66 and 1,285.26 is: 1,773.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.67 : 2,931.66 = 1,285.26 : x
  2. Step 2: Convert to fraction form
    2,124.67/2,931.66 = 1,285.26/x
  3. Step 3: Cross multiply
    2,124.67x = 2,931.66 × 1,285.26
  4. Step 4: Simplify right side
    2,124.67x = 3,767,945.33
  5. Step 5: Solve for x
    x = 3,767,945.33/2,124.67
  6. Step 6: Final answer
    x = 1,773.43

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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.