Home / 6,670.12-10,006.92-1,990.24

Finding the Fourth Proportional to 6,670.12, 10,006.92 and 1,990.24

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Solution

The fourth proportional to 6,670.12, 10,006.92 and 1,990.24 is: 2,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,670.12 : 10,006.92 = 1,990.24 : x
  2. Step 2: Convert to fraction form
    6,670.12/10,006.92 = 1,990.24/x
  3. Step 3: Cross multiply
    6,670.12x = 10,006.92 × 1,990.24
  4. Step 4: Simplify right side
    6,670.12x = 19,916,172.46
  5. Step 5: Solve for x
    x = 19,916,172.46/6,670.12
  6. Step 6: Final answer
    x = 2,985.88

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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.