Home / 3,125.66-4,307.45-2,239.93

Finding the Fourth Proportional to 3,125.66, 4,307.45 and 2,239.93

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Solution

The fourth proportional to 3,125.66, 4,307.45 and 2,239.93 is: 3,086.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.66 : 4,307.45 = 2,239.93 : x
  2. Step 2: Convert to fraction form
    3,125.66/4,307.45 = 2,239.93/x
  3. Step 3: Cross multiply
    3,125.66x = 4,307.45 × 2,239.93
  4. Step 4: Simplify right side
    3,125.66x = 9,648,386.48
  5. Step 5: Solve for x
    x = 9,648,386.48/3,125.66
  6. Step 6: Final answer
    x = 3,086.83

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1.5x scale

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.