Home / 2,651.21-3,658.67-1,472.28

Finding the Fourth Proportional to 2,651.21, 3,658.67 and 1,472.28

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Solution

The fourth proportional to 2,651.21, 3,658.67 and 1,472.28 is: 2,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.21 : 3,658.67 = 1,472.28 : x
  2. Step 2: Convert to fraction form
    2,651.21/3,658.67 = 1,472.28/x
  3. Step 3: Cross multiply
    2,651.21x = 3,658.67 × 1,472.28
  4. Step 4: Simplify right side
    2,651.21x = 5,386,571.11
  5. Step 5: Solve for x
    x = 5,386,571.11/2,651.21
  6. Step 6: Final answer
    x = 2,031.74

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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.