Home / 5,300-7,943.30-4,640.26

Finding the Fourth Proportional to 5,300, 7,943.30 and 4,640.26

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Solution

The fourth proportional to 5,300, 7,943.30 and 4,640.26 is: 6,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,300 : 7,943.30 = 4,640.26 : x
  2. Step 2: Convert to fraction form
    5,300/7,943.30 = 4,640.26/x
  3. Step 3: Cross multiply
    5,300x = 7,943.30 × 4,640.26
  4. Step 4: Simplify right side
    5,300x = 36,858,977.26
  5. Step 5: Solve for x
    x = 36,858,977.26/5,300
  6. Step 6: Final answer
    x = 6,954.52

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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.