Home / 2,631.47-3,946.39-1,332.77

Finding the Fourth Proportional to 2,631.47, 3,946.39 and 1,332.77

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Solution

The fourth proportional to 2,631.47, 3,946.39 and 1,332.77 is: 1,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.47 : 3,946.39 = 1,332.77 : x
  2. Step 2: Convert to fraction form
    2,631.47/3,946.39 = 1,332.77/x
  3. Step 3: Cross multiply
    2,631.47x = 3,946.39 × 1,332.77
  4. Step 4: Simplify right side
    2,631.47x = 5,259,607.14
  5. Step 5: Solve for x
    x = 5,259,607.14/2,631.47
  6. Step 6: Final answer
    x = 1,998.74

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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.