Home / 7,621.49-11,431.48-2,355.10

Finding the Fourth Proportional to 7,621.49, 11,431.48 and 2,355.10

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Solution

The fourth proportional to 7,621.49, 11,431.48 and 2,355.10 is: 3,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.49 : 11,431.48 = 2,355.10 : x
  2. Step 2: Convert to fraction form
    7,621.49/11,431.48 = 2,355.10/x
  3. Step 3: Cross multiply
    7,621.49x = 11,431.48 × 2,355.10
  4. Step 4: Simplify right side
    7,621.49x = 26,922,278.55
  5. Step 5: Solve for x
    x = 26,922,278.55/7,621.49
  6. Step 6: Final answer
    x = 3,532.42

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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.