Home / 3,487.14-4,812.44-1,915.25

Finding the Fourth Proportional to 3,487.14, 4,812.44 and 1,915.25

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Solution

The fourth proportional to 3,487.14, 4,812.44 and 1,915.25 is: 2,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.14 : 4,812.44 = 1,915.25 : x
  2. Step 2: Convert to fraction form
    3,487.14/4,812.44 = 1,915.25/x
  3. Step 3: Cross multiply
    3,487.14x = 4,812.44 × 1,915.25
  4. Step 4: Simplify right side
    3,487.14x = 9,216,992.07
  5. Step 5: Solve for x
    x = 9,216,992.07/3,487.14
  6. Step 6: Final answer
    x = 2,643.14

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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.