Home / 2,409.59-3,603.96-1,420.06

Finding the Fourth Proportional to 2,409.59, 3,603.96 and 1,420.06

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Solution

The fourth proportional to 2,409.59, 3,603.96 and 1,420.06 is: 2,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.59 : 3,603.96 = 1,420.06 : x
  2. Step 2: Convert to fraction form
    2,409.59/3,603.96 = 1,420.06/x
  3. Step 3: Cross multiply
    2,409.59x = 3,603.96 × 1,420.06
  4. Step 4: Simplify right side
    2,409.59x = 5,117,839.44
  5. Step 5: Solve for x
    x = 5,117,839.44/2,409.59
  6. Step 6: Final answer
    x = 2,123.95

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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.