Home / 2,807.15-3,875.26-2,176.25

Finding the Fourth Proportional to 2,807.15, 3,875.26 and 2,176.25

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Solution

The fourth proportional to 2,807.15, 3,875.26 and 2,176.25 is: 3,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.15 : 3,875.26 = 2,176.25 : x
  2. Step 2: Convert to fraction form
    2,807.15/3,875.26 = 2,176.25/x
  3. Step 3: Cross multiply
    2,807.15x = 3,875.26 × 2,176.25
  4. Step 4: Simplify right side
    2,807.15x = 8,433,534.58
  5. Step 5: Solve for x
    x = 8,433,534.58/2,807.15
  6. Step 6: Final answer
    x = 3,004.30

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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.