Home / 2,332.17-3,218.40-1,284.21

Finding the Fourth Proportional to 2,332.17, 3,218.40 and 1,284.21

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Solution

The fourth proportional to 2,332.17, 3,218.40 and 1,284.21 is: 1,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,332.17 : 3,218.40 = 1,284.21 : x
  2. Step 2: Convert to fraction form
    2,332.17/3,218.40 = 1,284.21/x
  3. Step 3: Cross multiply
    2,332.17x = 3,218.40 × 1,284.21
  4. Step 4: Simplify right side
    2,332.17x = 4,133,101.46
  5. Step 5: Solve for x
    x = 4,133,101.46/2,332.17
  6. Step 6: Final answer
    x = 1,772.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.