Home / 7,146.02-10,720.96-2,984.65

Finding the Fourth Proportional to 7,146.02, 10,720.96 and 2,984.65

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Solution

The fourth proportional to 7,146.02, 10,720.96 and 2,984.65 is: 4,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.02 : 10,720.96 = 2,984.65 : x
  2. Step 2: Convert to fraction form
    7,146.02/10,720.96 = 2,984.65/x
  3. Step 3: Cross multiply
    7,146.02x = 10,720.96 × 2,984.65
  4. Step 4: Simplify right side
    7,146.02x = 31,998,279.00
  5. Step 5: Solve for x
    x = 31,998,279.00/7,146.02
  6. Step 6: Final answer
    x = 4,477.77

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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.