Home / 4,148.47-6,218.59-2,666.78

Finding the Fourth Proportional to 4,148.47, 6,218.59 and 2,666.78

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Solution

The fourth proportional to 4,148.47, 6,218.59 and 2,666.78 is: 3,997.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.47 : 6,218.59 = 2,666.78 : x
  2. Step 2: Convert to fraction form
    4,148.47/6,218.59 = 2,666.78/x
  3. Step 3: Cross multiply
    4,148.47x = 6,218.59 × 2,666.78
  4. Step 4: Simplify right side
    4,148.47x = 16,583,602.00
  5. Step 5: Solve for x
    x = 16,583,602.00/4,148.47
  6. Step 6: Final answer
    x = 3,997.52

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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.