Home / 1,558.16-2,150.10-960.56

Finding the Fourth Proportional to 1,558.16, 2,150.10 and 960.56

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Solution

The fourth proportional to 1,558.16, 2,150.10 and 960.56 is: 1,325.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.16 : 2,150.10 = 960.56 : x
  2. Step 2: Convert to fraction form
    1,558.16/2,150.10 = 960.56/x
  3. Step 3: Cross multiply
    1,558.16x = 2,150.10 × 960.56
  4. Step 4: Simplify right side
    1,558.16x = 2,065,289.31
  5. Step 5: Solve for x
    x = 2,065,289.31/1,558.16
  6. Step 6: Final answer
    x = 1,325.47

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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.