Home / 3,330.96-4,991.40-1,870.56

Finding the Fourth Proportional to 3,330.96, 4,991.40 and 1,870.56

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Solution

The fourth proportional to 3,330.96, 4,991.40 and 1,870.56 is: 2,803.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.96 : 4,991.40 = 1,870.56 : x
  2. Step 2: Convert to fraction form
    3,330.96/4,991.40 = 1,870.56/x
  3. Step 3: Cross multiply
    3,330.96x = 4,991.40 × 1,870.56
  4. Step 4: Simplify right side
    3,330.96x = 9,336,713.18
  5. Step 5: Solve for x
    x = 9,336,713.18/3,330.96
  6. Step 6: Final answer
    x = 2,803.01

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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.