Home / 2,892.12-3,994.44-1,946.40

Finding the Fourth Proportional to 2,892.12, 3,994.44 and 1,946.40

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Solution

The fourth proportional to 2,892.12, 3,994.44 and 1,946.40 is: 2,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.12 : 3,994.44 = 1,946.40 : x
  2. Step 2: Convert to fraction form
    2,892.12/3,994.44 = 1,946.40/x
  3. Step 3: Cross multiply
    2,892.12x = 3,994.44 × 1,946.40
  4. Step 4: Simplify right side
    2,892.12x = 7,774,778.02
  5. Step 5: Solve for x
    x = 7,774,778.02/2,892.12
  6. Step 6: Final answer
    x = 2,688.26

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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.