Home / 2,810.08-3,878.45-1,631.13

Finding the Fourth Proportional to 2,810.08, 3,878.45 and 1,631.13

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Solution

The fourth proportional to 2,810.08, 3,878.45 and 1,631.13 is: 2,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.08 : 3,878.45 = 1,631.13 : x
  2. Step 2: Convert to fraction form
    2,810.08/3,878.45 = 1,631.13/x
  3. Step 3: Cross multiply
    2,810.08x = 3,878.45 × 1,631.13
  4. Step 4: Simplify right side
    2,810.08x = 6,326,256.15
  5. Step 5: Solve for x
    x = 6,326,256.15/2,810.08
  6. Step 6: Final answer
    x = 2,251.27

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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.