Home / 5,810.64-8,020.44-3,948.72

Finding the Fourth Proportional to 5,810.64, 8,020.44 and 3,948.72

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Solution

The fourth proportional to 5,810.64, 8,020.44 and 3,948.72 is: 5,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.64 : 8,020.44 = 3,948.72 : x
  2. Step 2: Convert to fraction form
    5,810.64/8,020.44 = 3,948.72/x
  3. Step 3: Cross multiply
    5,810.64x = 8,020.44 × 3,948.72
  4. Step 4: Simplify right side
    5,810.64x = 31,670,471.84
  5. Step 5: Solve for x
    x = 31,670,471.84/5,810.64
  6. Step 6: Final answer
    x = 5,450.43

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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.