Home / 2,092.86-3,139.80-631.93

Finding the Fourth Proportional to 2,092.86, 3,139.80 and 631.93

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Solution

The fourth proportional to 2,092.86, 3,139.80 and 631.93 is: 948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.86 : 3,139.80 = 631.93 : x
  2. Step 2: Convert to fraction form
    2,092.86/3,139.80 = 631.93/x
  3. Step 3: Cross multiply
    2,092.86x = 3,139.80 × 631.93
  4. Step 4: Simplify right side
    2,092.86x = 1,984,125.96
  5. Step 5: Solve for x
    x = 1,984,125.96/2,092.86
  6. Step 6: Final answer
    x = 948.05

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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.