Home / 2,927.58-4,040.25-1,668.78

Finding the Fourth Proportional to 2,927.58, 4,040.25 and 1,668.78

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Solution

The fourth proportional to 2,927.58, 4,040.25 and 1,668.78 is: 2,303.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.58 : 4,040.25 = 1,668.78 : x
  2. Step 2: Convert to fraction form
    2,927.58/4,040.25 = 1,668.78/x
  3. Step 3: Cross multiply
    2,927.58x = 4,040.25 × 1,668.78
  4. Step 4: Simplify right side
    2,927.58x = 6,742,288.40
  5. Step 5: Solve for x
    x = 6,742,288.40/2,927.58
  6. Step 6: Final answer
    x = 2,303.02

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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.