Home / 6,420.85-9,630.58-2,259.74

Finding the Fourth Proportional to 6,420.85, 9,630.58 and 2,259.74

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Solution

The fourth proportional to 6,420.85, 9,630.58 and 2,259.74 is: 3,389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.85 : 9,630.58 = 2,259.74 : x
  2. Step 2: Convert to fraction form
    6,420.85/9,630.58 = 2,259.74/x
  3. Step 3: Cross multiply
    6,420.85x = 9,630.58 × 2,259.74
  4. Step 4: Simplify right side
    6,420.85x = 21,762,606.85
  5. Step 5: Solve for x
    x = 21,762,606.85/6,420.85
  6. Step 6: Final answer
    x = 3,389.37

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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.