Home / 7,921.86-10,934.91-4,899.29

Finding the Fourth Proportional to 7,921.86, 10,934.91 and 4,899.29

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Solution

The fourth proportional to 7,921.86, 10,934.91 and 4,899.29 is: 6,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.86 : 10,934.91 = 4,899.29 : x
  2. Step 2: Convert to fraction form
    7,921.86/10,934.91 = 4,899.29/x
  3. Step 3: Cross multiply
    7,921.86x = 10,934.91 × 4,899.29
  4. Step 4: Simplify right side
    7,921.86x = 53,573,317.36
  5. Step 5: Solve for x
    x = 53,573,317.36/7,921.86
  6. Step 6: Final answer
    x = 6,762.72

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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.