Home / 6,666.15-9,992.31-2,970.12

Finding the Fourth Proportional to 6,666.15, 9,992.31 and 2,970.12

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Solution

The fourth proportional to 6,666.15, 9,992.31 and 2,970.12 is: 4,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.15 : 9,992.31 = 2,970.12 : x
  2. Step 2: Convert to fraction form
    6,666.15/9,992.31 = 2,970.12/x
  3. Step 3: Cross multiply
    6,666.15x = 9,992.31 × 2,970.12
  4. Step 4: Simplify right side
    6,666.15x = 29,678,359.78
  5. Step 5: Solve for x
    x = 29,678,359.78/6,666.15
  6. Step 6: Final answer
    x = 4,452.10

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1.5x scale

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.