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Finding the Fourth Proportional to 4,918.50, 7,339.98 and 4,393.02

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Solution

The fourth proportional to 4,918.50, 7,339.98 and 4,393.02 is: 6,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.50 : 7,339.98 = 4,393.02 : x
  2. Step 2: Convert to fraction form
    4,918.50/7,339.98 = 4,393.02/x
  3. Step 3: Cross multiply
    4,918.50x = 7,339.98 × 4,393.02
  4. Step 4: Simplify right side
    4,918.50x = 32,244,678.94
  5. Step 5: Solve for x
    x = 32,244,678.94/4,918.50
  6. Step 6: Final answer
    x = 6,555.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.