Home / 1,149.02-1,723.36-490.98

Finding the Fourth Proportional to 1,149.02, 1,723.36 and 490.98

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Solution

The fourth proportional to 1,149.02, 1,723.36 and 490.98 is: 736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.02 : 1,723.36 = 490.98 : x
  2. Step 2: Convert to fraction form
    1,149.02/1,723.36 = 490.98/x
  3. Step 3: Cross multiply
    1,149.02x = 1,723.36 × 490.98
  4. Step 4: Simplify right side
    1,149.02x = 846,135.29
  5. Step 5: Solve for x
    x = 846,135.29/1,149.02
  6. Step 6: Final answer
    x = 736.40

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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.