Home / 7,161.04-9,880.21-4,643.25

Finding the Fourth Proportional to 7,161.04, 9,880.21 and 4,643.25

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Solution

The fourth proportional to 7,161.04, 9,880.21 and 4,643.25 is: 6,406.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.04 : 9,880.21 = 4,643.25 : x
  2. Step 2: Convert to fraction form
    7,161.04/9,880.21 = 4,643.25/x
  3. Step 3: Cross multiply
    7,161.04x = 9,880.21 × 4,643.25
  4. Step 4: Simplify right side
    7,161.04x = 45,876,261.87
  5. Step 5: Solve for x
    x = 45,876,261.87/7,161.04
  6. Step 6: Final answer
    x = 6,406.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.