Home / 3,071.90-4,605.12-1,122.74

Finding the Fourth Proportional to 3,071.90, 4,605.12 and 1,122.74

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Solution

The fourth proportional to 3,071.90, 4,605.12 and 1,122.74 is: 1,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.90 : 4,605.12 = 1,122.74 : x
  2. Step 2: Convert to fraction form
    3,071.90/4,605.12 = 1,122.74/x
  3. Step 3: Cross multiply
    3,071.90x = 4,605.12 × 1,122.74
  4. Step 4: Simplify right side
    3,071.90x = 5,170,352.43
  5. Step 5: Solve for x
    x = 5,170,352.43/3,071.90
  6. Step 6: Final answer
    x = 1,683.11

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1.5x scale

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.