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Finding the Fourth Proportional to 7,854.58, 10,839.05 and 4,317.77

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Solution

The fourth proportional to 7,854.58, 10,839.05 and 4,317.77 is: 5,958.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.58 : 10,839.05 = 4,317.77 : x
  2. Step 2: Convert to fraction form
    7,854.58/10,839.05 = 4,317.77/x
  3. Step 3: Cross multiply
    7,854.58x = 10,839.05 × 4,317.77
  4. Step 4: Simplify right side
    7,854.58x = 46,800,449.13
  5. Step 5: Solve for x
    x = 46,800,449.13/7,854.58
  6. Step 6: Final answer
    x = 5,958.36

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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.