Home / 1,729.60-2,386.83-943.63

Finding the Fourth Proportional to 1,729.60, 2,386.83 and 943.63

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Solution

The fourth proportional to 1,729.60, 2,386.83 and 943.63 is: 1,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.60 : 2,386.83 = 943.63 : x
  2. Step 2: Convert to fraction form
    1,729.60/2,386.83 = 943.63/x
  3. Step 3: Cross multiply
    1,729.60x = 2,386.83 × 943.63
  4. Step 4: Simplify right side
    1,729.60x = 2,252,284.39
  5. Step 5: Solve for x
    x = 2,252,284.39/1,729.60
  6. Step 6: Final answer
    x = 1,302.20

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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.