Home / 1,729.70-2,386.30-973.30

Finding the Fourth Proportional to 1,729.70, 2,386.30 and 973.30

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Solution

The fourth proportional to 1,729.70, 2,386.30 and 973.30 is: 1,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.70 : 2,386.30 = 973.30 : x
  2. Step 2: Convert to fraction form
    1,729.70/2,386.30 = 973.30/x
  3. Step 3: Cross multiply
    1,729.70x = 2,386.30 × 973.30
  4. Step 4: Simplify right side
    1,729.70x = 2,322,585.79
  5. Step 5: Solve for x
    x = 2,322,585.79/1,729.70
  6. Step 6: Final answer
    x = 1,342.77

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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.