Home / 2,808.86-3,875.36-1,629.70

Finding the Fourth Proportional to 2,808.86, 3,875.36 and 1,629.70

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Solution

The fourth proportional to 2,808.86, 3,875.36 and 1,629.70 is: 2,248.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.86 : 3,875.36 = 1,629.70 : x
  2. Step 2: Convert to fraction form
    2,808.86/3,875.36 = 1,629.70/x
  3. Step 3: Cross multiply
    2,808.86x = 3,875.36 × 1,629.70
  4. Step 4: Simplify right side
    2,808.86x = 6,315,656.36
  5. Step 5: Solve for x
    x = 6,315,656.36/2,808.86
  6. Step 6: Final answer
    x = 2,248.48

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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.