Home / 2,846.20-4,269.30-1,971.40

Finding the Fourth Proportional to 2,846.20, 4,269.30 and 1,971.40

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Solution

The fourth proportional to 2,846.20, 4,269.30 and 1,971.40 is: 2,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.20 : 4,269.30 = 1,971.40 : x
  2. Step 2: Convert to fraction form
    2,846.20/4,269.30 = 1,971.40/x
  3. Step 3: Cross multiply
    2,846.20x = 4,269.30 × 1,971.40
  4. Step 4: Simplify right side
    2,846.20x = 8,416,498.02
  5. Step 5: Solve for x
    x = 8,416,498.02/2,846.20
  6. Step 6: Final answer
    x = 2,957.10

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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.