Home / 4,421.90-6,631.43-1,459.79

Finding the Fourth Proportional to 4,421.90, 6,631.43 and 1,459.79

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Solution

The fourth proportional to 4,421.90, 6,631.43 and 1,459.79 is: 2,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.90 : 6,631.43 = 1,459.79 : x
  2. Step 2: Convert to fraction form
    4,421.90/6,631.43 = 1,459.79/x
  3. Step 3: Cross multiply
    4,421.90x = 6,631.43 × 1,459.79
  4. Step 4: Simplify right side
    4,421.90x = 9,680,484.66
  5. Step 5: Solve for x
    x = 9,680,484.66/4,421.90
  6. Step 6: Final answer
    x = 2,189.22

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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.