Home / 2,963.14-4,089.07-1,915.22

Finding the Fourth Proportional to 2,963.14, 4,089.07 and 1,915.22

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Solution

The fourth proportional to 2,963.14, 4,089.07 and 1,915.22 is: 2,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.14 : 4,089.07 = 1,915.22 : x
  2. Step 2: Convert to fraction form
    2,963.14/4,089.07 = 1,915.22/x
  3. Step 3: Cross multiply
    2,963.14x = 4,089.07 × 1,915.22
  4. Step 4: Simplify right side
    2,963.14x = 7,831,468.65
  5. Step 5: Solve for x
    x = 7,831,468.65/2,963.14
  6. Step 6: Final answer
    x = 2,642.96

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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.