Home / 1,472.10-2,205.21-730.56

Finding the Fourth Proportional to 1,472.10, 2,205.21 and 730.56

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Solution

The fourth proportional to 1,472.10, 2,205.21 and 730.56 is: 1,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.10 : 2,205.21 = 730.56 : x
  2. Step 2: Convert to fraction form
    1,472.10/2,205.21 = 730.56/x
  3. Step 3: Cross multiply
    1,472.10x = 2,205.21 × 730.56
  4. Step 4: Simplify right side
    1,472.10x = 1,611,038.22
  5. Step 5: Solve for x
    x = 1,611,038.22/1,472.10
  6. Step 6: Final answer
    x = 1,094.38

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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.