Home / 7,717.07-10,645.64-4,879.66

Finding the Fourth Proportional to 7,717.07, 10,645.64 and 4,879.66

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Solution

The fourth proportional to 7,717.07, 10,645.64 and 4,879.66 is: 6,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.07 : 10,645.64 = 4,879.66 : x
  2. Step 2: Convert to fraction form
    7,717.07/10,645.64 = 4,879.66/x
  3. Step 3: Cross multiply
    7,717.07x = 10,645.64 × 4,879.66
  4. Step 4: Simplify right side
    7,717.07x = 51,947,090.93
  5. Step 5: Solve for x
    x = 51,947,090.93/7,717.07
  6. Step 6: Final answer
    x = 6,731.46

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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.