Home / 5,430.76-8,147.24-1,732.88

Finding the Fourth Proportional to 5,430.76, 8,147.24 and 1,732.88

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Solution

The fourth proportional to 5,430.76, 8,147.24 and 1,732.88 is: 2,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.76 : 8,147.24 = 1,732.88 : x
  2. Step 2: Convert to fraction form
    5,430.76/8,147.24 = 1,732.88/x
  3. Step 3: Cross multiply
    5,430.76x = 8,147.24 × 1,732.88
  4. Step 4: Simplify right side
    5,430.76x = 14,118,189.25
  5. Step 5: Solve for x
    x = 14,118,189.25/5,430.76
  6. Step 6: Final answer
    x = 2,599.67

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1.5x scale

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.