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Finding the Fourth Proportional to 3,485.57, 4,807.17 and 2,955.83

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Solution

The fourth proportional to 3,485.57, 4,807.17 and 2,955.83 is: 4,076.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.57 : 4,807.17 = 2,955.83 : x
  2. Step 2: Convert to fraction form
    3,485.57/4,807.17 = 2,955.83/x
  3. Step 3: Cross multiply
    3,485.57x = 4,807.17 × 2,955.83
  4. Step 4: Simplify right side
    3,485.57x = 14,209,189.32
  5. Step 5: Solve for x
    x = 14,209,189.32/3,485.57
  6. Step 6: Final answer
    x = 4,076.57

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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.