Home / 1,531.55-2,297.49-491.31

Finding the Fourth Proportional to 1,531.55, 2,297.49 and 491.31

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Solution

The fourth proportional to 1,531.55, 2,297.49 and 491.31 is: 737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.55 : 2,297.49 = 491.31 : x
  2. Step 2: Convert to fraction form
    1,531.55/2,297.49 = 491.31/x
  3. Step 3: Cross multiply
    1,531.55x = 2,297.49 × 491.31
  4. Step 4: Simplify right side
    1,531.55x = 1,128,779.81
  5. Step 5: Solve for x
    x = 1,128,779.81/1,531.55
  6. Step 6: Final answer
    x = 737.02

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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.