Home / 2,376.24-3,561.54-989.28

Finding the Fourth Proportional to 2,376.24, 3,561.54 and 989.28

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Solution

The fourth proportional to 2,376.24, 3,561.54 and 989.28 is: 1,482.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.24 : 3,561.54 = 989.28 : x
  2. Step 2: Convert to fraction form
    2,376.24/3,561.54 = 989.28/x
  3. Step 3: Cross multiply
    2,376.24x = 3,561.54 × 989.28
  4. Step 4: Simplify right side
    2,376.24x = 3,523,360.29
  5. Step 5: Solve for x
    x = 3,523,360.29/2,376.24
  6. Step 6: Final answer
    x = 1,482.75

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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.