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Finding the Fourth Proportional to 4,776.76, 6,591.72 and 2,888.80

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Solution

The fourth proportional to 4,776.76, 6,591.72 and 2,888.80 is: 3,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,776.76 : 6,591.72 = 2,888.80 : x
  2. Step 2: Convert to fraction form
    4,776.76/6,591.72 = 2,888.80/x
  3. Step 3: Cross multiply
    4,776.76x = 6,591.72 × 2,888.80
  4. Step 4: Simplify right side
    4,776.76x = 19,042,160.74
  5. Step 5: Solve for x
    x = 19,042,160.74/4,776.76
  6. Step 6: Final answer
    x = 3,986.42

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Half scale
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Double scale
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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.