Home / 2,135.53-2,946.65-1,191.11

Finding the Fourth Proportional to 2,135.53, 2,946.65 and 1,191.11

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Solution

The fourth proportional to 2,135.53, 2,946.65 and 1,191.11 is: 1,643.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.53 : 2,946.65 = 1,191.11 : x
  2. Step 2: Convert to fraction form
    2,135.53/2,946.65 = 1,191.11/x
  3. Step 3: Cross multiply
    2,135.53x = 2,946.65 × 1,191.11
  4. Step 4: Simplify right side
    2,135.53x = 3,509,794.63
  5. Step 5: Solve for x
    x = 3,509,794.63/2,135.53
  6. Step 6: Final answer
    x = 1,643.53

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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.