Home / 5,237.86-7,228.35-2,880.22

Finding the Fourth Proportional to 5,237.86, 7,228.35 and 2,880.22

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Solution

The fourth proportional to 5,237.86, 7,228.35 and 2,880.22 is: 3,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.86 : 7,228.35 = 2,880.22 : x
  2. Step 2: Convert to fraction form
    5,237.86/7,228.35 = 2,880.22/x
  3. Step 3: Cross multiply
    5,237.86x = 7,228.35 × 2,880.22
  4. Step 4: Simplify right side
    5,237.86x = 20,819,238.24
  5. Step 5: Solve for x
    x = 20,819,238.24/5,237.86
  6. Step 6: Final answer
    x = 3,974.76

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Double scale
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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.