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Finding the Fourth Proportional to 1,895.32, 2,843.46 and 740.68

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Solution

The fourth proportional to 1,895.32, 2,843.46 and 740.68 is: 1,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.32 : 2,843.46 = 740.68 : x
  2. Step 2: Convert to fraction form
    1,895.32/2,843.46 = 740.68/x
  3. Step 3: Cross multiply
    1,895.32x = 2,843.46 × 740.68
  4. Step 4: Simplify right side
    1,895.32x = 2,106,093.95
  5. Step 5: Solve for x
    x = 2,106,093.95/1,895.32
  6. Step 6: Final answer
    x = 1,111.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.