Home / 2,911.68-4,017.51-1,732.55

Finding the Fourth Proportional to 2,911.68, 4,017.51 and 1,732.55

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Solution

The fourth proportional to 2,911.68, 4,017.51 and 1,732.55 is: 2,390.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.68 : 4,017.51 = 1,732.55 : x
  2. Step 2: Convert to fraction form
    2,911.68/4,017.51 = 1,732.55/x
  3. Step 3: Cross multiply
    2,911.68x = 4,017.51 × 1,732.55
  4. Step 4: Simplify right side
    2,911.68x = 6,960,516.86
  5. Step 5: Solve for x
    x = 6,960,516.86/2,911.68
  6. Step 6: Final answer
    x = 2,390.55

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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.