Home / 1,481.34-2,222.49-507.45

Finding the Fourth Proportional to 1,481.34, 2,222.49 and 507.45

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Solution

The fourth proportional to 1,481.34, 2,222.49 and 507.45 is: 761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.34 : 2,222.49 = 507.45 : x
  2. Step 2: Convert to fraction form
    1,481.34/2,222.49 = 507.45/x
  3. Step 3: Cross multiply
    1,481.34x = 2,222.49 × 507.45
  4. Step 4: Simplify right side
    1,481.34x = 1,127,802.55
  5. Step 5: Solve for x
    x = 1,127,802.55/1,481.34
  6. Step 6: Final answer
    x = 761.34

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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.