Home / 5,271.85-7,275.18-2,881.83

Finding the Fourth Proportional to 5,271.85, 7,275.18 and 2,881.83

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Solution

The fourth proportional to 5,271.85, 7,275.18 and 2,881.83 is: 3,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.85 : 7,275.18 = 2,881.83 : x
  2. Step 2: Convert to fraction form
    5,271.85/7,275.18 = 2,881.83/x
  3. Step 3: Cross multiply
    5,271.85x = 7,275.18 × 2,881.83
  4. Step 4: Simplify right side
    5,271.85x = 20,965,795.60
  5. Step 5: Solve for x
    x = 20,965,795.60/5,271.85
  6. Step 6: Final answer
    x = 3,976.93

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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.