Home / 2,838.18-3,915.12-2,653.74

Finding the Fourth Proportional to 2,838.18, 3,915.12 and 2,653.74

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Solution

The fourth proportional to 2,838.18, 3,915.12 and 2,653.74 is: 3,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.18 : 3,915.12 = 2,653.74 : x
  2. Step 2: Convert to fraction form
    2,838.18/3,915.12 = 2,653.74/x
  3. Step 3: Cross multiply
    2,838.18x = 3,915.12 × 2,653.74
  4. Step 4: Simplify right side
    2,838.18x = 10,389,710.55
  5. Step 5: Solve for x
    x = 10,389,710.55/2,838.18
  6. Step 6: Final answer
    x = 3,660.69

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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.