Home / 2,927.87-4,040.22-1,668.83

Finding the Fourth Proportional to 2,927.87, 4,040.22 and 1,668.83

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Solution

The fourth proportional to 2,927.87, 4,040.22 and 1,668.83 is: 2,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.87 : 4,040.22 = 1,668.83 : x
  2. Step 2: Convert to fraction form
    2,927.87/4,040.22 = 1,668.83/x
  3. Step 3: Cross multiply
    2,927.87x = 4,040.22 × 1,668.83
  4. Step 4: Simplify right side
    2,927.87x = 6,742,420.14
  5. Step 5: Solve for x
    x = 6,742,420.14/2,927.87
  6. Step 6: Final answer
    x = 2,302.85

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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.