Home / 2,971.20-4,466.40-2,740.80

Finding the Fourth Proportional to 2,971.20, 4,466.40 and 2,740.80

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Solution

The fourth proportional to 2,971.20, 4,466.40 and 2,740.80 is: 4,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.20 : 4,466.40 = 2,740.80 : x
  2. Step 2: Convert to fraction form
    2,971.20/4,466.40 = 2,740.80/x
  3. Step 3: Cross multiply
    2,971.20x = 4,466.40 × 2,740.80
  4. Step 4: Simplify right side
    2,971.20x = 12,241,509.12
  5. Step 5: Solve for x
    x = 12,241,509.12/2,971.20
  6. Step 6: Final answer
    x = 4,120.06

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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.