Home / 5,728.40-7,910.01-4,309.63

Finding the Fourth Proportional to 5,728.40, 7,910.01 and 4,309.63

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Solution

The fourth proportional to 5,728.40, 7,910.01 and 4,309.63 is: 5,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.40 : 7,910.01 = 4,309.63 : x
  2. Step 2: Convert to fraction form
    5,728.40/7,910.01 = 4,309.63/x
  3. Step 3: Cross multiply
    5,728.40x = 7,910.01 × 4,309.63
  4. Step 4: Simplify right side
    5,728.40x = 34,089,204.27
  5. Step 5: Solve for x
    x = 34,089,204.27/5,728.40
  6. Step 6: Final answer
    x = 5,950.91

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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.