Home / 2,329.84-3,490.14-1,405.66

Finding the Fourth Proportional to 2,329.84, 3,490.14 and 1,405.66

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Solution

The fourth proportional to 2,329.84, 3,490.14 and 1,405.66 is: 2,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.84 : 3,490.14 = 1,405.66 : x
  2. Step 2: Convert to fraction form
    2,329.84/3,490.14 = 1,405.66/x
  3. Step 3: Cross multiply
    2,329.84x = 3,490.14 × 1,405.66
  4. Step 4: Simplify right side
    2,329.84x = 4,905,950.19
  5. Step 5: Solve for x
    x = 4,905,950.19/2,329.84
  6. Step 6: Final answer
    x = 2,105.70

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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.