Home / 1,913.47-2,868.68-1,759.71

Finding the Fourth Proportional to 1,913.47, 2,868.68 and 1,759.71

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Solution

The fourth proportional to 1,913.47, 2,868.68 and 1,759.71 is: 2,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.47 : 2,868.68 = 1,759.71 : x
  2. Step 2: Convert to fraction form
    1,913.47/2,868.68 = 1,759.71/x
  3. Step 3: Cross multiply
    1,913.47x = 2,868.68 × 1,759.71
  4. Step 4: Simplify right side
    1,913.47x = 5,048,043.90
  5. Step 5: Solve for x
    x = 5,048,043.90/1,913.47
  6. Step 6: Final answer
    x = 2,638.16

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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.