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Finding the Fourth Proportional to 6,925.60, 10,390.80 and 3,032.80

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Solution

The fourth proportional to 6,925.60, 10,390.80 and 3,032.80 is: 4,550.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,925.60 : 10,390.80 = 3,032.80 : x
  2. Step 2: Convert to fraction form
    6,925.60/10,390.80 = 3,032.80/x
  3. Step 3: Cross multiply
    6,925.60x = 10,390.80 × 3,032.80
  4. Step 4: Simplify right side
    6,925.60x = 31,513,218.24
  5. Step 5: Solve for x
    x = 31,513,218.24/6,925.60
  6. Step 6: Final answer
    x = 4,550.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.