Home / 7,721.93-10,650.64-4,889.77

Finding the Fourth Proportional to 7,721.93, 10,650.64 and 4,889.77

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Solution

The fourth proportional to 7,721.93, 10,650.64 and 4,889.77 is: 6,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.93 : 10,650.64 = 4,889.77 : x
  2. Step 2: Convert to fraction form
    7,721.93/10,650.64 = 4,889.77/x
  3. Step 3: Cross multiply
    7,721.93x = 10,650.64 × 4,889.77
  4. Step 4: Simplify right side
    7,721.93x = 52,079,102.25
  5. Step 5: Solve for x
    x = 52,079,102.25/7,721.93
  6. Step 6: Final answer
    x = 6,744.31

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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.