Home / 5,118.03-7,062.84-2,880.32

Finding the Fourth Proportional to 5,118.03, 7,062.84 and 2,880.32

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Solution

The fourth proportional to 5,118.03, 7,062.84 and 2,880.32 is: 3,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.03 : 7,062.84 = 2,880.32 : x
  2. Step 2: Convert to fraction form
    5,118.03/7,062.84 = 2,880.32/x
  3. Step 3: Cross multiply
    5,118.03x = 7,062.84 × 2,880.32
  4. Step 4: Simplify right side
    5,118.03x = 20,343,203.99
  5. Step 5: Solve for x
    x = 20,343,203.99/5,118.03
  6. Step 6: Final answer
    x = 3,974.81

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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.