Home / 5,113.80-7,670.29-1,826.55

Finding the Fourth Proportional to 5,113.80, 7,670.29 and 1,826.55

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Solution

The fourth proportional to 5,113.80, 7,670.29 and 1,826.55 is: 2,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.80 : 7,670.29 = 1,826.55 : x
  2. Step 2: Convert to fraction form
    5,113.80/7,670.29 = 1,826.55/x
  3. Step 3: Cross multiply
    5,113.80x = 7,670.29 × 1,826.55
  4. Step 4: Simplify right side
    5,113.80x = 14,010,120.72
  5. Step 5: Solve for x
    x = 14,010,120.72/5,113.80
  6. Step 6: Final answer
    x = 2,739.67

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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.