Home / 2,825.81-3,899.30-1,630.77

Finding the Fourth Proportional to 2,825.81, 3,899.30 and 1,630.77

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Solution

The fourth proportional to 2,825.81, 3,899.30 and 1,630.77 is: 2,250.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.81 : 3,899.30 = 1,630.77 : x
  2. Step 2: Convert to fraction form
    2,825.81/3,899.30 = 1,630.77/x
  3. Step 3: Cross multiply
    2,825.81x = 3,899.30 × 1,630.77
  4. Step 4: Simplify right side
    2,825.81x = 6,358,853.31
  5. Step 5: Solve for x
    x = 6,358,853.31/2,825.81
  6. Step 6: Final answer
    x = 2,250.28

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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.