Home / 2,907.81-4,012.88-1,730.07

Finding the Fourth Proportional to 2,907.81, 4,012.88 and 1,730.07

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Solution

The fourth proportional to 2,907.81, 4,012.88 and 1,730.07 is: 2,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.81 : 4,012.88 = 1,730.07 : x
  2. Step 2: Convert to fraction form
    2,907.81/4,012.88 = 1,730.07/x
  3. Step 3: Cross multiply
    2,907.81x = 4,012.88 × 1,730.07
  4. Step 4: Simplify right side
    2,907.81x = 6,942,554.65
  5. Step 5: Solve for x
    x = 6,942,554.65/2,907.81
  6. Step 6: Final answer
    x = 2,387.55

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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.