Home / 2,135.08-2,946.58-1,191.18

Finding the Fourth Proportional to 2,135.08, 2,946.58 and 1,191.18

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Solution

The fourth proportional to 2,135.08, 2,946.58 and 1,191.18 is: 1,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.08 : 2,946.58 = 1,191.18 : x
  2. Step 2: Convert to fraction form
    2,135.08/2,946.58 = 1,191.18/x
  3. Step 3: Cross multiply
    2,135.08x = 2,946.58 × 1,191.18
  4. Step 4: Simplify right side
    2,135.08x = 3,509,907.16
  5. Step 5: Solve for x
    x = 3,509,907.16/2,135.08
  6. Step 6: Final answer
    x = 1,643.92

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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.