Home / 2,576.04-3,866.58-1,115.70

Finding the Fourth Proportional to 2,576.04, 3,866.58 and 1,115.70

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Solution

The fourth proportional to 2,576.04, 3,866.58 and 1,115.70 is: 1,674.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.04 : 3,866.58 = 1,115.70 : x
  2. Step 2: Convert to fraction form
    2,576.04/3,866.58 = 1,115.70/x
  3. Step 3: Cross multiply
    2,576.04x = 3,866.58 × 1,115.70
  4. Step 4: Simplify right side
    2,576.04x = 4,313,943.31
  5. Step 5: Solve for x
    x = 4,313,943.31/2,576.04
  6. Step 6: Final answer
    x = 1,674.64

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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.