Home / 1,282.03-1,921.64-501.80

Finding the Fourth Proportional to 1,282.03, 1,921.64 and 501.80

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Solution

The fourth proportional to 1,282.03, 1,921.64 and 501.80 is: 752.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.03 : 1,921.64 = 501.80 : x
  2. Step 2: Convert to fraction form
    1,282.03/1,921.64 = 501.80/x
  3. Step 3: Cross multiply
    1,282.03x = 1,921.64 × 501.80
  4. Step 4: Simplify right side
    1,282.03x = 964,266.83
  5. Step 5: Solve for x
    x = 964,266.83/1,282.03
  6. Step 6: Final answer
    x = 752.14

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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.