Home / 1,624.80-2,434.32-1,109.28

Finding the Fourth Proportional to 1,624.80, 2,434.32 and 1,109.28

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Solution

The fourth proportional to 1,624.80, 2,434.32 and 1,109.28 is: 1,661.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.80 : 2,434.32 = 1,109.28 : x
  2. Step 2: Convert to fraction form
    1,624.80/2,434.32 = 1,109.28/x
  3. Step 3: Cross multiply
    1,624.80x = 2,434.32 × 1,109.28
  4. Step 4: Simplify right side
    1,624.80x = 2,700,342.49
  5. Step 5: Solve for x
    x = 2,700,342.49/1,624.80
  6. Step 6: Final answer
    x = 1,661.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.