Home / 1,461.35-2,192.14-487.45

Finding the Fourth Proportional to 1,461.35, 2,192.14 and 487.45

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Solution

The fourth proportional to 1,461.35, 2,192.14 and 487.45 is: 731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.35 : 2,192.14 = 487.45 : x
  2. Step 2: Convert to fraction form
    1,461.35/2,192.14 = 487.45/x
  3. Step 3: Cross multiply
    1,461.35x = 2,192.14 × 487.45
  4. Step 4: Simplify right side
    1,461.35x = 1,068,556.21
  5. Step 5: Solve for x
    x = 1,068,556.21/1,461.35
  6. Step 6: Final answer
    x = 731.21

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1.5x scale

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.