Home / 4,934.72-6,807.80-2,838.40

Finding the Fourth Proportional to 4,934.72, 6,807.80 and 2,838.40

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Solution

The fourth proportional to 4,934.72, 6,807.80 and 2,838.40 is: 3,915.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,934.72 : 6,807.80 = 2,838.40 : x
  2. Step 2: Convert to fraction form
    4,934.72/6,807.80 = 2,838.40/x
  3. Step 3: Cross multiply
    4,934.72x = 6,807.80 × 2,838.40
  4. Step 4: Simplify right side
    4,934.72x = 19,323,259.52
  5. Step 5: Solve for x
    x = 19,323,259.52/4,934.72
  6. Step 6: Final answer
    x = 3,915.78

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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.