Home / 1,832.79-2,750.55-1,140.47

Finding the Fourth Proportional to 1,832.79, 2,750.55 and 1,140.47

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Solution

The fourth proportional to 1,832.79, 2,750.55 and 1,140.47 is: 1,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,832.79 : 2,750.55 = 1,140.47 : x
  2. Step 2: Convert to fraction form
    1,832.79/2,750.55 = 1,140.47/x
  3. Step 3: Cross multiply
    1,832.79x = 2,750.55 × 1,140.47
  4. Step 4: Simplify right side
    1,832.79x = 3,136,919.76
  5. Step 5: Solve for x
    x = 3,136,919.76/1,832.79
  6. Step 6: Final answer
    x = 1,711.55

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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.