Home / 4,689.08-6,472.21-2,919.64

Finding the Fourth Proportional to 4,689.08, 6,472.21 and 2,919.64

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Solution

The fourth proportional to 4,689.08, 6,472.21 and 2,919.64 is: 4,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.08 : 6,472.21 = 2,919.64 : x
  2. Step 2: Convert to fraction form
    4,689.08/6,472.21 = 2,919.64/x
  3. Step 3: Cross multiply
    4,689.08x = 6,472.21 × 2,919.64
  4. Step 4: Simplify right side
    4,689.08x = 18,896,523.20
  5. Step 5: Solve for x
    x = 18,896,523.20/4,689.08
  6. Step 6: Final answer
    x = 4,029.90

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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.