Home / 1,281.30-1,922.45-501.37

Finding the Fourth Proportional to 1,281.30, 1,922.45 and 501.37

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Solution

The fourth proportional to 1,281.30, 1,922.45 and 501.37 is: 752.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.30 : 1,922.45 = 501.37 : x
  2. Step 2: Convert to fraction form
    1,281.30/1,922.45 = 501.37/x
  3. Step 3: Cross multiply
    1,281.30x = 1,922.45 × 501.37
  4. Step 4: Simplify right side
    1,281.30x = 963,858.76
  5. Step 5: Solve for x
    x = 963,858.76/1,281.30
  6. Step 6: Final answer
    x = 752.25

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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.