Home / 3,890.02-5,835.36-1,668.95

Finding the Fourth Proportional to 3,890.02, 5,835.36 and 1,668.95

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Solution

The fourth proportional to 3,890.02, 5,835.36 and 1,668.95 is: 2,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.02 : 5,835.36 = 1,668.95 : x
  2. Step 2: Convert to fraction form
    3,890.02/5,835.36 = 1,668.95/x
  3. Step 3: Cross multiply
    3,890.02x = 5,835.36 × 1,668.95
  4. Step 4: Simplify right side
    3,890.02x = 9,738,916.78
  5. Step 5: Solve for x
    x = 9,738,916.78/3,890.02
  6. Step 6: Final answer
    x = 2,503.57

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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.