Home / 2,990.28-4,482.18-1,951.05

Finding the Fourth Proportional to 2,990.28, 4,482.18 and 1,951.05

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Solution

The fourth proportional to 2,990.28, 4,482.18 and 1,951.05 is: 2,924.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.28 : 4,482.18 = 1,951.05 : x
  2. Step 2: Convert to fraction form
    2,990.28/4,482.18 = 1,951.05/x
  3. Step 3: Cross multiply
    2,990.28x = 4,482.18 × 1,951.05
  4. Step 4: Simplify right side
    2,990.28x = 8,744,957.29
  5. Step 5: Solve for x
    x = 8,744,957.29/2,990.28
  6. Step 6: Final answer
    x = 2,924.46

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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.