Home / 2,879.02-3,973.43-2,135.10

Finding the Fourth Proportional to 2,879.02, 3,973.43 and 2,135.10

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Solution

The fourth proportional to 2,879.02, 3,973.43 and 2,135.10 is: 2,946.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.02 : 3,973.43 = 2,135.10 : x
  2. Step 2: Convert to fraction form
    2,879.02/3,973.43 = 2,135.10/x
  3. Step 3: Cross multiply
    2,879.02x = 3,973.43 × 2,135.10
  4. Step 4: Simplify right side
    2,879.02x = 8,483,690.63
  5. Step 5: Solve for x
    x = 8,483,690.63/2,879.02
  6. Step 6: Final answer
    x = 2,946.73

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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.