Home / 3,980.74-5,492.62-2,301.53

Finding the Fourth Proportional to 3,980.74, 5,492.62 and 2,301.53

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Solution

The fourth proportional to 3,980.74, 5,492.62 and 2,301.53 is: 3,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.74 : 5,492.62 = 2,301.53 : x
  2. Step 2: Convert to fraction form
    3,980.74/5,492.62 = 2,301.53/x
  3. Step 3: Cross multiply
    3,980.74x = 5,492.62 × 2,301.53
  4. Step 4: Simplify right side
    3,980.74x = 12,641,436.28
  5. Step 5: Solve for x
    x = 12,641,436.28/3,980.74
  6. Step 6: Final answer
    x = 3,175.65

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1.5x scale

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.