Home / 6,670.45-10,007.04-1,990.27

Finding the Fourth Proportional to 6,670.45, 10,007.04 and 1,990.27

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Solution

The fourth proportional to 6,670.45, 10,007.04 and 1,990.27 is: 2,985.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,670.45 : 10,007.04 = 1,990.27 : x
  2. Step 2: Convert to fraction form
    6,670.45/10,007.04 = 1,990.27/x
  3. Step 3: Cross multiply
    6,670.45x = 10,007.04 × 1,990.27
  4. Step 4: Simplify right side
    6,670.45x = 19,916,731.47
  5. Step 5: Solve for x
    x = 19,916,731.47/6,670.45
  6. Step 6: Final answer
    x = 2,985.81

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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.