Home / 4,342.92-6,513.68-1,420.60

Finding the Fourth Proportional to 4,342.92, 6,513.68 and 1,420.60

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Solution

The fourth proportional to 4,342.92, 6,513.68 and 1,420.60 is: 2,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,342.92 : 6,513.68 = 1,420.60 : x
  2. Step 2: Convert to fraction form
    4,342.92/6,513.68 = 1,420.60/x
  3. Step 3: Cross multiply
    4,342.92x = 6,513.68 × 1,420.60
  4. Step 4: Simplify right side
    4,342.92x = 9,253,333.81
  5. Step 5: Solve for x
    x = 9,253,333.81/4,342.92
  6. Step 6: Final answer
    x = 2,130.67

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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.