Home / 6,420.48-9,628.56-2,260.32

Finding the Fourth Proportional to 6,420.48, 9,628.56 and 2,260.32

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Solution

The fourth proportional to 6,420.48, 9,628.56 and 2,260.32 is: 3,389.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.48 : 9,628.56 = 2,260.32 : x
  2. Step 2: Convert to fraction form
    6,420.48/9,628.56 = 2,260.32/x
  3. Step 3: Cross multiply
    6,420.48x = 9,628.56 × 2,260.32
  4. Step 4: Simplify right side
    6,420.48x = 21,763,626.74
  5. Step 5: Solve for x
    x = 21,763,626.74/6,420.48
  6. Step 6: Final answer
    x = 3,389.72

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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.