Home / 3,420.27-4,717.58-3,141.45

Finding the Fourth Proportional to 3,420.27, 4,717.58 and 3,141.45

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Solution

The fourth proportional to 3,420.27, 4,717.58 and 3,141.45 is: 4,333.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.27 : 4,717.58 = 3,141.45 : x
  2. Step 2: Convert to fraction form
    3,420.27/4,717.58 = 3,141.45/x
  3. Step 3: Cross multiply
    3,420.27x = 4,717.58 × 3,141.45
  4. Step 4: Simplify right side
    3,420.27x = 14,820,025.98
  5. Step 5: Solve for x
    x = 14,820,025.98/3,420.27
  6. Step 6: Final answer
    x = 4,333.00

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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.