Home / 4,805.72-6,631.30-2,815.82

Finding the Fourth Proportional to 4,805.72, 6,631.30 and 2,815.82

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Solution

The fourth proportional to 4,805.72, 6,631.30 and 2,815.82 is: 3,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.72 : 6,631.30 = 2,815.82 : x
  2. Step 2: Convert to fraction form
    4,805.72/6,631.30 = 2,815.82/x
  3. Step 3: Cross multiply
    4,805.72x = 6,631.30 × 2,815.82
  4. Step 4: Simplify right side
    4,805.72x = 18,672,547.17
  5. Step 5: Solve for x
    x = 18,672,547.17/4,805.72
  6. Step 6: Final answer
    x = 3,885.48

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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.