Home / 7,818.22-10,788.74-4,280.75

Finding the Fourth Proportional to 7,818.22, 10,788.74 and 4,280.75

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Solution

The fourth proportional to 7,818.22, 10,788.74 and 4,280.75 is: 5,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.22 : 10,788.74 = 4,280.75 : x
  2. Step 2: Convert to fraction form
    7,818.22/10,788.74 = 4,280.75/x
  3. Step 3: Cross multiply
    7,818.22x = 10,788.74 × 4,280.75
  4. Step 4: Simplify right side
    7,818.22x = 46,183,904.00
  5. Step 5: Solve for x
    x = 46,183,904.00/7,818.22
  6. Step 6: Final answer
    x = 5,907.21

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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.