Home / 1,729.32-2,386.20-973.14

Finding the Fourth Proportional to 1,729.32, 2,386.20 and 973.14

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Solution

The fourth proportional to 1,729.32, 2,386.20 and 973.14 is: 1,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.32 : 2,386.20 = 973.14 : x
  2. Step 2: Convert to fraction form
    1,729.32/2,386.20 = 973.14/x
  3. Step 3: Cross multiply
    1,729.32x = 2,386.20 × 973.14
  4. Step 4: Simplify right side
    1,729.32x = 2,322,106.67
  5. Step 5: Solve for x
    x = 2,322,106.67/1,729.32
  6. Step 6: Final answer
    x = 1,342.79

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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.