Home / 5,623.73-7,761.45-3,386.81

Finding the Fourth Proportional to 5,623.73, 7,761.45 and 3,386.81

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Solution

The fourth proportional to 5,623.73, 7,761.45 and 3,386.81 is: 4,674.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.73 : 7,761.45 = 3,386.81 : x
  2. Step 2: Convert to fraction form
    5,623.73/7,761.45 = 3,386.81/x
  3. Step 3: Cross multiply
    5,623.73x = 7,761.45 × 3,386.81
  4. Step 4: Simplify right side
    5,623.73x = 26,286,517.67
  5. Step 5: Solve for x
    x = 26,286,517.67/5,623.73
  6. Step 6: Final answer
    x = 4,674.22

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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.