Home / 2,980.02-4,111.08-1,861.24

Finding the Fourth Proportional to 2,980.02, 4,111.08 and 1,861.24

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Solution

The fourth proportional to 2,980.02, 4,111.08 and 1,861.24 is: 2,567.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.02 : 4,111.08 = 1,861.24 : x
  2. Step 2: Convert to fraction form
    2,980.02/4,111.08 = 1,861.24/x
  3. Step 3: Cross multiply
    2,980.02x = 4,111.08 × 1,861.24
  4. Step 4: Simplify right side
    2,980.02x = 7,651,706.54
  5. Step 5: Solve for x
    x = 7,651,706.54/2,980.02
  6. Step 6: Final answer
    x = 2,567.67

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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.