Home / 1,558.15-2,150.02-968.47

Finding the Fourth Proportional to 1,558.15, 2,150.02 and 968.47

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Solution

The fourth proportional to 1,558.15, 2,150.02 and 968.47 is: 1,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.15 : 2,150.02 = 968.47 : x
  2. Step 2: Convert to fraction form
    1,558.15/2,150.02 = 968.47/x
  3. Step 3: Cross multiply
    1,558.15x = 2,150.02 × 968.47
  4. Step 4: Simplify right side
    1,558.15x = 2,082,222.07
  5. Step 5: Solve for x
    x = 2,082,222.07/1,558.15
  6. Step 6: Final answer
    x = 1,336.34

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1.5x scale

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.