Home / 2,551.23-3,518.78-2,197.76

Finding the Fourth Proportional to 2,551.23, 3,518.78 and 2,197.76

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Solution

The fourth proportional to 2,551.23, 3,518.78 and 2,197.76 is: 3,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.23 : 3,518.78 = 2,197.76 : x
  2. Step 2: Convert to fraction form
    2,551.23/3,518.78 = 2,197.76/x
  3. Step 3: Cross multiply
    2,551.23x = 3,518.78 × 2,197.76
  4. Step 4: Simplify right side
    2,551.23x = 7,733,405.35
  5. Step 5: Solve for x
    x = 7,733,405.35/2,551.23
  6. Step 6: Final answer
    x = 3,031.25

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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.