Home / 2,899.08-3,973.77-2,847.78

Finding the Fourth Proportional to 2,899.08, 3,973.77 and 2,847.78

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Solution

The fourth proportional to 2,899.08, 3,973.77 and 2,847.78 is: 3,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.08 : 3,973.77 = 2,847.78 : x
  2. Step 2: Convert to fraction form
    2,899.08/3,973.77 = 2,847.78/x
  3. Step 3: Cross multiply
    2,899.08x = 3,973.77 × 2,847.78
  4. Step 4: Simplify right side
    2,899.08x = 11,316,422.73
  5. Step 5: Solve for x
    x = 11,316,422.73/2,899.08
  6. Step 6: Final answer
    x = 3,903.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.