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Finding the Fourth Proportional to 4,886.94, 6,746.32 and 2,790.66

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Solution

The fourth proportional to 4,886.94, 6,746.32 and 2,790.66 is: 3,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.94 : 6,746.32 = 2,790.66 : x
  2. Step 2: Convert to fraction form
    4,886.94/6,746.32 = 2,790.66/x
  3. Step 3: Cross multiply
    4,886.94x = 6,746.32 × 2,790.66
  4. Step 4: Simplify right side
    4,886.94x = 18,826,685.37
  5. Step 5: Solve for x
    x = 18,826,685.37/4,886.94
  6. Step 6: Final answer
    x = 3,852.45

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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.