Home / 1,558.65-2,150.95-850.51

Finding the Fourth Proportional to 1,558.65, 2,150.95 and 850.51

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Solution

The fourth proportional to 1,558.65, 2,150.95 and 850.51 is: 1,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.65 : 2,150.95 = 850.51 : x
  2. Step 2: Convert to fraction form
    1,558.65/2,150.95 = 850.51/x
  3. Step 3: Cross multiply
    1,558.65x = 2,150.95 × 850.51
  4. Step 4: Simplify right side
    1,558.65x = 1,829,405.05
  5. Step 5: Solve for x
    x = 1,829,405.05/1,558.65
  6. Step 6: Final answer
    x = 1,173.71

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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.