Home / 3,113.65-4,668.13-1,880.81

Finding the Fourth Proportional to 3,113.65, 4,668.13 and 1,880.81

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Solution

The fourth proportional to 3,113.65, 4,668.13 and 1,880.81 is: 2,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.65 : 4,668.13 = 1,880.81 : x
  2. Step 2: Convert to fraction form
    3,113.65/4,668.13 = 1,880.81/x
  3. Step 3: Cross multiply
    3,113.65x = 4,668.13 × 1,880.81
  4. Step 4: Simplify right side
    3,113.65x = 8,779,865.59
  5. Step 5: Solve for x
    x = 8,779,865.59/3,113.65
  6. Step 6: Final answer
    x = 2,819.80

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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.