Home / 3,485.66-4,807.78-2,958.05

Finding the Fourth Proportional to 3,485.66, 4,807.78 and 2,958.05

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Solution

The fourth proportional to 3,485.66, 4,807.78 and 2,958.05 is: 4,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.66 : 4,807.78 = 2,958.05 : x
  2. Step 2: Convert to fraction form
    3,485.66/4,807.78 = 2,958.05/x
  3. Step 3: Cross multiply
    3,485.66x = 4,807.78 × 2,958.05
  4. Step 4: Simplify right side
    3,485.66x = 14,221,658.25
  5. Step 5: Solve for x
    x = 14,221,658.25/3,485.66
  6. Step 6: Final answer
    x = 4,080.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.