Home / 2,970.19-4,446.78-1,994.55

Finding the Fourth Proportional to 2,970.19, 4,446.78 and 1,994.55

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Solution

The fourth proportional to 2,970.19, 4,446.78 and 1,994.55 is: 2,986.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.19 : 4,446.78 = 1,994.55 : x
  2. Step 2: Convert to fraction form
    2,970.19/4,446.78 = 1,994.55/x
  3. Step 3: Cross multiply
    2,970.19x = 4,446.78 × 1,994.55
  4. Step 4: Simplify right side
    2,970.19x = 8,869,325.05
  5. Step 5: Solve for x
    x = 8,869,325.05/2,970.19
  6. Step 6: Final answer
    x = 2,986.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.