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Finding the Fourth Proportional to 3,262.68, 4,898.88 and 1,318.68

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Solution

The fourth proportional to 3,262.68, 4,898.88 and 1,318.68 is: 1,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,262.68 : 4,898.88 = 1,318.68 : x
  2. Step 2: Convert to fraction form
    3,262.68/4,898.88 = 1,318.68/x
  3. Step 3: Cross multiply
    3,262.68x = 4,898.88 × 1,318.68
  4. Step 4: Simplify right side
    3,262.68x = 6,460,055.08
  5. Step 5: Solve for x
    x = 6,460,055.08/3,262.68
  6. Step 6: Final answer
    x = 1,979.98

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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.