Home / 2,990.32-4,477.14-2,760.64

Finding the Fourth Proportional to 2,990.32, 4,477.14 and 2,760.64

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Solution

The fourth proportional to 2,990.32, 4,477.14 and 2,760.64 is: 4,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.32 : 4,477.14 = 2,760.64 : x
  2. Step 2: Convert to fraction form
    2,990.32/4,477.14 = 2,760.64/x
  3. Step 3: Cross multiply
    2,990.32x = 4,477.14 × 2,760.64
  4. Step 4: Simplify right side
    2,990.32x = 12,359,771.77
  5. Step 5: Solve for x
    x = 12,359,771.77/2,990.32
  6. Step 6: Final answer
    x = 4,133.26

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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.