Home / 1,943.68-2,679.60-1,647.76

Finding the Fourth Proportional to 1,943.68, 2,679.60 and 1,647.76

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Solution

The fourth proportional to 1,943.68, 2,679.60 and 1,647.76 is: 2,271.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.68 : 2,679.60 = 1,647.76 : x
  2. Step 2: Convert to fraction form
    1,943.68/2,679.60 = 1,647.76/x
  3. Step 3: Cross multiply
    1,943.68x = 2,679.60 × 1,647.76
  4. Step 4: Simplify right side
    1,943.68x = 4,415,337.70
  5. Step 5: Solve for x
    x = 4,415,337.70/1,943.68
  6. Step 6: Final answer
    x = 2,271.64

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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.