Home / 2,911.76-4,017.72-1,732.64

Finding the Fourth Proportional to 2,911.76, 4,017.72 and 1,732.64

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Solution

The fourth proportional to 2,911.76, 4,017.72 and 1,732.64 is: 2,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.76 : 4,017.72 = 1,732.64 : x
  2. Step 2: Convert to fraction form
    2,911.76/4,017.72 = 1,732.64/x
  3. Step 3: Cross multiply
    2,911.76x = 4,017.72 × 1,732.64
  4. Step 4: Simplify right side
    2,911.76x = 6,961,262.38
  5. Step 5: Solve for x
    x = 6,961,262.38/2,911.76
  6. Step 6: Final answer
    x = 2,390.74

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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.