Home / 5,312.23-7,999.21-3,935.33

Finding the Fourth Proportional to 5,312.23, 7,999.21 and 3,935.33

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Solution

The fourth proportional to 5,312.23, 7,999.21 and 3,935.33 is: 5,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.23 : 7,999.21 = 3,935.33 : x
  2. Step 2: Convert to fraction form
    5,312.23/7,999.21 = 3,935.33/x
  3. Step 3: Cross multiply
    5,312.23x = 7,999.21 × 3,935.33
  4. Step 4: Simplify right side
    5,312.23x = 31,479,481.25
  5. Step 5: Solve for x
    x = 31,479,481.25/5,312.23
  6. Step 6: Final answer
    x = 5,925.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.