Home / 2,990.12-4,482.30-1,529.96

Finding the Fourth Proportional to 2,990.12, 4,482.30 and 1,529.96

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Solution

The fourth proportional to 2,990.12, 4,482.30 and 1,529.96 is: 2,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.12 : 4,482.30 = 1,529.96 : x
  2. Step 2: Convert to fraction form
    2,990.12/4,482.30 = 1,529.96/x
  3. Step 3: Cross multiply
    2,990.12x = 4,482.30 × 1,529.96
  4. Step 4: Simplify right side
    2,990.12x = 6,857,739.71
  5. Step 5: Solve for x
    x = 6,857,739.71/2,990.12
  6. Step 6: Final answer
    x = 2,293.47

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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.