Home / 4,878.06-6,717.54-4,239.72

Finding the Fourth Proportional to 4,878.06, 6,717.54 and 4,239.72

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Solution

The fourth proportional to 4,878.06, 6,717.54 and 4,239.72 is: 5,838.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.06 : 6,717.54 = 4,239.72 : x
  2. Step 2: Convert to fraction form
    4,878.06/6,717.54 = 4,239.72/x
  3. Step 3: Cross multiply
    4,878.06x = 6,717.54 × 4,239.72
  4. Step 4: Simplify right side
    4,878.06x = 28,480,488.69
  5. Step 5: Solve for x
    x = 28,480,488.69/4,878.06
  6. Step 6: Final answer
    x = 5,838.49

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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.