Home / 7,775.13-10,731.16-4,751.60

Finding the Fourth Proportional to 7,775.13, 10,731.16 and 4,751.60

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Solution

The fourth proportional to 7,775.13, 10,731.16 and 4,751.60 is: 6,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.13 : 10,731.16 = 4,751.60 : x
  2. Step 2: Convert to fraction form
    7,775.13/10,731.16 = 4,751.60/x
  3. Step 3: Cross multiply
    7,775.13x = 10,731.16 × 4,751.60
  4. Step 4: Simplify right side
    7,775.13x = 50,990,194.12
  5. Step 5: Solve for x
    x = 50,990,194.12/7,775.13
  6. Step 6: Final answer
    x = 6,558.12

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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.