Home / 1,557.93-2,149.83-968.25

Finding the Fourth Proportional to 1,557.93, 2,149.83 and 968.25

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Solution

The fourth proportional to 1,557.93, 2,149.83 and 968.25 is: 1,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.93 : 2,149.83 = 968.25 : x
  2. Step 2: Convert to fraction form
    1,557.93/2,149.83 = 968.25/x
  3. Step 3: Cross multiply
    1,557.93x = 2,149.83 × 968.25
  4. Step 4: Simplify right side
    1,557.93x = 2,081,572.90
  5. Step 5: Solve for x
    x = 2,081,572.90/1,557.93
  6. Step 6: Final answer
    x = 1,336.11

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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.