Home / 1,820.42-2,510.58-1,190.44

Finding the Fourth Proportional to 1,820.42, 2,510.58 and 1,190.44

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Solution

The fourth proportional to 1,820.42, 2,510.58 and 1,190.44 is: 1,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.42 : 2,510.58 = 1,190.44 : x
  2. Step 2: Convert to fraction form
    1,820.42/2,510.58 = 1,190.44/x
  3. Step 3: Cross multiply
    1,820.42x = 2,510.58 × 1,190.44
  4. Step 4: Simplify right side
    1,820.42x = 2,988,694.86
  5. Step 5: Solve for x
    x = 2,988,694.86/1,820.42
  6. Step 6: Final answer
    x = 1,641.76

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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.