Home / 1,461.10-2,192.30-767.60

Finding the Fourth Proportional to 1,461.10, 2,192.30 and 767.60

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Solution

The fourth proportional to 1,461.10, 2,192.30 and 767.60 is: 1,151.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.10 : 2,192.30 = 767.60 : x
  2. Step 2: Convert to fraction form
    1,461.10/2,192.30 = 767.60/x
  3. Step 3: Cross multiply
    1,461.10x = 2,192.30 × 767.60
  4. Step 4: Simplify right side
    1,461.10x = 1,682,809.48
  5. Step 5: Solve for x
    x = 1,682,809.48/1,461.10
  6. Step 6: Final answer
    x = 1,151.74

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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.