Home / 7,925.20-11,887.80-2,378.32

Finding the Fourth Proportional to 7,925.20, 11,887.80 and 2,378.32

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Solution

The fourth proportional to 7,925.20, 11,887.80 and 2,378.32 is: 3,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,925.20 : 11,887.80 = 2,378.32 : x
  2. Step 2: Convert to fraction form
    7,925.20/11,887.80 = 2,378.32/x
  3. Step 3: Cross multiply
    7,925.20x = 11,887.80 × 2,378.32
  4. Step 4: Simplify right side
    7,925.20x = 28,272,992.50
  5. Step 5: Solve for x
    x = 28,272,992.50/7,925.20
  6. Step 6: Final answer
    x = 3,567.48

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1.5x scale

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.