Home / 7,133.24-9,844.80-3,990.08

Finding the Fourth Proportional to 7,133.24, 9,844.80 and 3,990.08

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Solution

The fourth proportional to 7,133.24, 9,844.80 and 3,990.08 is: 5,506.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.24 : 9,844.80 = 3,990.08 : x
  2. Step 2: Convert to fraction form
    7,133.24/9,844.80 = 3,990.08/x
  3. Step 3: Cross multiply
    7,133.24x = 9,844.80 × 3,990.08
  4. Step 4: Simplify right side
    7,133.24x = 39,281,539.58
  5. Step 5: Solve for x
    x = 39,281,539.58/7,133.24
  6. Step 6: Final answer
    x = 5,506.83

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1.5x scale

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.