Home / 3,140.74-4,711.46-1,384.99

Finding the Fourth Proportional to 3,140.74, 4,711.46 and 1,384.99

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Solution

The fourth proportional to 3,140.74, 4,711.46 and 1,384.99 is: 2,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.74 : 4,711.46 = 1,384.99 : x
  2. Step 2: Convert to fraction form
    3,140.74/4,711.46 = 1,384.99/x
  3. Step 3: Cross multiply
    3,140.74x = 4,711.46 × 1,384.99
  4. Step 4: Simplify right side
    3,140.74x = 6,525,324.99
  5. Step 5: Solve for x
    x = 6,525,324.99/3,140.74
  6. Step 6: Final answer
    x = 2,077.64

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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.