Home / 1,317.18-1,817.45-793.25

Finding the Fourth Proportional to 1,317.18, 1,817.45 and 793.25

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Solution

The fourth proportional to 1,317.18, 1,817.45 and 793.25 is: 1,094.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.18 : 1,817.45 = 793.25 : x
  2. Step 2: Convert to fraction form
    1,317.18/1,817.45 = 793.25/x
  3. Step 3: Cross multiply
    1,317.18x = 1,817.45 × 793.25
  4. Step 4: Simplify right side
    1,317.18x = 1,441,683.13
  5. Step 5: Solve for x
    x = 1,441,683.13/1,317.18
  6. Step 6: Final answer
    x = 1,094.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.