Home / 1,461.02-2,189.46-729.56

Finding the Fourth Proportional to 1,461.02, 2,189.46 and 729.56

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Solution

The fourth proportional to 1,461.02, 2,189.46 and 729.56 is: 1,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.02 : 2,189.46 = 729.56 : x
  2. Step 2: Convert to fraction form
    1,461.02/2,189.46 = 729.56/x
  3. Step 3: Cross multiply
    1,461.02x = 2,189.46 × 729.56
  4. Step 4: Simplify right side
    1,461.02x = 1,597,342.44
  5. Step 5: Solve for x
    x = 1,597,342.44/1,461.02
  6. Step 6: Final answer
    x = 1,093.31

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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.