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Finding the Fourth Proportional to 3,139.74, 4,676.22 and 3,053.64

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Solution

The fourth proportional to 3,139.74, 4,676.22 and 3,053.64 is: 4,547.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.74 : 4,676.22 = 3,053.64 : x
  2. Step 2: Convert to fraction form
    3,139.74/4,676.22 = 3,053.64/x
  3. Step 3: Cross multiply
    3,139.74x = 4,676.22 × 3,053.64
  4. Step 4: Simplify right side
    3,139.74x = 14,279,492.44
  5. Step 5: Solve for x
    x = 14,279,492.44/3,139.74
  6. Step 6: Final answer
    x = 4,547.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.