Home / 4,431.47-6,646.21-1,311.71

Finding the Fourth Proportional to 4,431.47, 6,646.21 and 1,311.71

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Solution

The fourth proportional to 4,431.47, 6,646.21 and 1,311.71 is: 1,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,431.47 : 6,646.21 = 1,311.71 : x
  2. Step 2: Convert to fraction form
    4,431.47/6,646.21 = 1,311.71/x
  3. Step 3: Cross multiply
    4,431.47x = 6,646.21 × 1,311.71
  4. Step 4: Simplify right side
    4,431.47x = 8,717,900.12
  5. Step 5: Solve for x
    x = 8,717,900.12/4,431.47
  6. Step 6: Final answer
    x = 1,967.27

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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.