Home / 1,579.84-2,371.32-1,003.12

Finding the Fourth Proportional to 1,579.84, 2,371.32 and 1,003.12

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Solution

The fourth proportional to 1,579.84, 2,371.32 and 1,003.12 is: 1,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.84 : 2,371.32 = 1,003.12 : x
  2. Step 2: Convert to fraction form
    1,579.84/2,371.32 = 1,003.12/x
  3. Step 3: Cross multiply
    1,579.84x = 2,371.32 × 1,003.12
  4. Step 4: Simplify right side
    1,579.84x = 2,378,718.52
  5. Step 5: Solve for x
    x = 2,378,718.52/1,579.84
  6. Step 6: Final answer
    x = 1,505.67

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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.