Home / 7,230.02-9,977.46-3,918.02

Finding the Fourth Proportional to 7,230.02, 9,977.46 and 3,918.02

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Solution

The fourth proportional to 7,230.02, 9,977.46 and 3,918.02 is: 5,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.02 : 9,977.46 = 3,918.02 : x
  2. Step 2: Convert to fraction form
    7,230.02/9,977.46 = 3,918.02/x
  3. Step 3: Cross multiply
    7,230.02x = 9,977.46 × 3,918.02
  4. Step 4: Simplify right side
    7,230.02x = 39,091,887.83
  5. Step 5: Solve for x
    x = 39,091,887.83/7,230.02
  6. Step 6: Final answer
    x = 5,406.89

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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.