Home / 2,838.05-3,915.93-1,658.90

Finding the Fourth Proportional to 2,838.05, 3,915.93 and 1,658.90

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Solution

The fourth proportional to 2,838.05, 3,915.93 and 1,658.90 is: 2,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.05 : 3,915.93 = 1,658.90 : x
  2. Step 2: Convert to fraction form
    2,838.05/3,915.93 = 1,658.90/x
  3. Step 3: Cross multiply
    2,838.05x = 3,915.93 × 1,658.90
  4. Step 4: Simplify right side
    2,838.05x = 6,496,120.93
  5. Step 5: Solve for x
    x = 6,496,120.93/2,838.05
  6. Step 6: Final answer
    x = 2,288.93

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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.