Home / 2,417.81-3,619.53-1,318.84

Finding the Fourth Proportional to 2,417.81, 3,619.53 and 1,318.84

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Solution

The fourth proportional to 2,417.81, 3,619.53 and 1,318.84 is: 1,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.81 : 3,619.53 = 1,318.84 : x
  2. Step 2: Convert to fraction form
    2,417.81/3,619.53 = 1,318.84/x
  3. Step 3: Cross multiply
    2,417.81x = 3,619.53 × 1,318.84
  4. Step 4: Simplify right side
    2,417.81x = 4,773,580.95
  5. Step 5: Solve for x
    x = 4,773,580.95/2,417.81
  6. Step 6: Final answer
    x = 1,974.34

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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.