Home / 4,913.91-6,781.34-2,818.04

Finding the Fourth Proportional to 4,913.91, 6,781.34 and 2,818.04

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Solution

The fourth proportional to 4,913.91, 6,781.34 and 2,818.04 is: 3,888.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.91 : 6,781.34 = 2,818.04 : x
  2. Step 2: Convert to fraction form
    4,913.91/6,781.34 = 2,818.04/x
  3. Step 3: Cross multiply
    4,913.91x = 6,781.34 × 2,818.04
  4. Step 4: Simplify right side
    4,913.91x = 19,110,060.51
  5. Step 5: Solve for x
    x = 19,110,060.51/4,913.91
  6. Step 6: Final answer
    x = 3,888.97

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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.