Home / 2,620.15-3,615.84-2,031.48

Finding the Fourth Proportional to 2,620.15, 3,615.84 and 2,031.48

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Solution

The fourth proportional to 2,620.15, 3,615.84 and 2,031.48 is: 2,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.15 : 3,615.84 = 2,031.48 : x
  2. Step 2: Convert to fraction form
    2,620.15/3,615.84 = 2,031.48/x
  3. Step 3: Cross multiply
    2,620.15x = 3,615.84 × 2,031.48
  4. Step 4: Simplify right side
    2,620.15x = 7,345,506.64
  5. Step 5: Solve for x
    x = 7,345,506.64/2,620.15
  6. Step 6: Final answer
    x = 2,803.47

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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.