Home / 5,620.16-8,430.17-1,459.79

Finding the Fourth Proportional to 5,620.16, 8,430.17 and 1,459.79

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Solution

The fourth proportional to 5,620.16, 8,430.17 and 1,459.79 is: 2,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.16 : 8,430.17 = 1,459.79 : x
  2. Step 2: Convert to fraction form
    5,620.16/8,430.17 = 1,459.79/x
  3. Step 3: Cross multiply
    5,620.16x = 8,430.17 × 1,459.79
  4. Step 4: Simplify right side
    5,620.16x = 12,306,291.64
  5. Step 5: Solve for x
    x = 12,306,291.64/5,620.16
  6. Step 6: Final answer
    x = 2,189.67

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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.