Home / 3,070.78-4,605.25-1,122.53

Finding the Fourth Proportional to 3,070.78, 4,605.25 and 1,122.53

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Solution

The fourth proportional to 3,070.78, 4,605.25 and 1,122.53 is: 1,683.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.78 : 4,605.25 = 1,122.53 : x
  2. Step 2: Convert to fraction form
    3,070.78/4,605.25 = 1,122.53/x
  3. Step 3: Cross multiply
    3,070.78x = 4,605.25 × 1,122.53
  4. Step 4: Simplify right side
    3,070.78x = 5,169,508.26
  5. Step 5: Solve for x
    x = 5,169,508.26/3,070.78
  6. Step 6: Final answer
    x = 1,683.45

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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.