Home / 1,905.68-2,629.80-1,159.67

Finding the Fourth Proportional to 1,905.68, 2,629.80 and 1,159.67

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Solution

The fourth proportional to 1,905.68, 2,629.80 and 1,159.67 is: 1,600.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.68 : 2,629.80 = 1,159.67 : x
  2. Step 2: Convert to fraction form
    1,905.68/2,629.80 = 1,159.67/x
  3. Step 3: Cross multiply
    1,905.68x = 2,629.80 × 1,159.67
  4. Step 4: Simplify right side
    1,905.68x = 3,049,700.17
  5. Step 5: Solve for x
    x = 3,049,700.17/1,905.68
  6. Step 6: Final answer
    x = 1,600.32

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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.