Home / 2,135.52-2,946.84-1,191.24

Finding the Fourth Proportional to 2,135.52, 2,946.84 and 1,191.24

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Solution

The fourth proportional to 2,135.52, 2,946.84 and 1,191.24 is: 1,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.52 : 2,946.84 = 1,191.24 : x
  2. Step 2: Convert to fraction form
    2,135.52/2,946.84 = 1,191.24/x
  3. Step 3: Cross multiply
    2,135.52x = 2,946.84 × 1,191.24
  4. Step 4: Simplify right side
    2,135.52x = 3,510,393.68
  5. Step 5: Solve for x
    x = 3,510,393.68/2,135.52
  6. Step 6: Final answer
    x = 1,643.81

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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.