Home / 1,558.08-2,150.28-968.58

Finding the Fourth Proportional to 1,558.08, 2,150.28 and 968.58

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Solution

The fourth proportional to 1,558.08, 2,150.28 and 968.58 is: 1,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.08 : 2,150.28 = 968.58 : x
  2. Step 2: Convert to fraction form
    1,558.08/2,150.28 = 968.58/x
  3. Step 3: Cross multiply
    1,558.08x = 2,150.28 × 968.58
  4. Step 4: Simplify right side
    1,558.08x = 2,082,718.20
  5. Step 5: Solve for x
    x = 2,082,718.20/1,558.08
  6. Step 6: Final answer
    x = 1,336.72

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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.