Home / 6,485.65-9,728.52-2,784.76

Finding the Fourth Proportional to 6,485.65, 9,728.52 and 2,784.76

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Solution

The fourth proportional to 6,485.65, 9,728.52 and 2,784.76 is: 4,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.65 : 9,728.52 = 2,784.76 : x
  2. Step 2: Convert to fraction form
    6,485.65/9,728.52 = 2,784.76/x
  3. Step 3: Cross multiply
    6,485.65x = 9,728.52 × 2,784.76
  4. Step 4: Simplify right side
    6,485.65x = 27,091,593.36
  5. Step 5: Solve for x
    x = 27,091,593.36/6,485.65
  6. Step 6: Final answer
    x = 4,177.16

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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.