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Finding the Fourth Proportional to 2,888.72, 4,333.08 and 1,429.68

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Solution

The fourth proportional to 2,888.72, 4,333.08 and 1,429.68 is: 2,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.72 : 4,333.08 = 1,429.68 : x
  2. Step 2: Convert to fraction form
    2,888.72/4,333.08 = 1,429.68/x
  3. Step 3: Cross multiply
    2,888.72x = 4,333.08 × 1,429.68
  4. Step 4: Simplify right side
    2,888.72x = 6,194,917.81
  5. Step 5: Solve for x
    x = 6,194,917.81/2,888.72
  6. Step 6: Final answer
    x = 2,144.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.