Home / 1,669.86-2,505.14-1,150.11

Finding the Fourth Proportional to 1,669.86, 2,505.14 and 1,150.11

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Solution

The fourth proportional to 1,669.86, 2,505.14 and 1,150.11 is: 1,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.86 : 2,505.14 = 1,150.11 : x
  2. Step 2: Convert to fraction form
    1,669.86/2,505.14 = 1,150.11/x
  3. Step 3: Cross multiply
    1,669.86x = 2,505.14 × 1,150.11
  4. Step 4: Simplify right side
    1,669.86x = 2,881,180.81
  5. Step 5: Solve for x
    x = 2,881,180.81/1,669.86
  6. Step 6: Final answer
    x = 1,725.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.