Home / 4,271.48-6,406.99-1,640.25

Finding the Fourth Proportional to 4,271.48, 6,406.99 and 1,640.25

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Solution

The fourth proportional to 4,271.48, 6,406.99 and 1,640.25 is: 2,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,271.48 : 6,406.99 = 1,640.25 : x
  2. Step 2: Convert to fraction form
    4,271.48/6,406.99 = 1,640.25/x
  3. Step 3: Cross multiply
    4,271.48x = 6,406.99 × 1,640.25
  4. Step 4: Simplify right side
    4,271.48x = 10,509,065.35
  5. Step 5: Solve for x
    x = 10,509,065.35/4,271.48
  6. Step 6: Final answer
    x = 2,460.29

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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.