Home / 6,515.36-9,776.88-2,621.60

Finding the Fourth Proportional to 6,515.36, 9,776.88 and 2,621.60

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Solution

The fourth proportional to 6,515.36, 9,776.88 and 2,621.60 is: 3,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.36 : 9,776.88 = 2,621.60 : x
  2. Step 2: Convert to fraction form
    6,515.36/9,776.88 = 2,621.60/x
  3. Step 3: Cross multiply
    6,515.36x = 9,776.88 × 2,621.60
  4. Step 4: Simplify right side
    6,515.36x = 25,631,068.61
  5. Step 5: Solve for x
    x = 25,631,068.61/6,515.36
  6. Step 6: Final answer
    x = 3,933.95

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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.