Home / 1,424.87-2,137.49-500.28

Finding the Fourth Proportional to 1,424.87, 2,137.49 and 500.28

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Solution

The fourth proportional to 1,424.87, 2,137.49 and 500.28 is: 750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.87 : 2,137.49 = 500.28 : x
  2. Step 2: Convert to fraction form
    1,424.87/2,137.49 = 500.28/x
  3. Step 3: Cross multiply
    1,424.87x = 2,137.49 × 500.28
  4. Step 4: Simplify right side
    1,424.87x = 1,069,341.00
  5. Step 5: Solve for x
    x = 1,069,341.00/1,424.87
  6. Step 6: Final answer
    x = 750.49

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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.