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Finding the Fourth Proportional to 6,415.55, 9,625.95 and 2,904.60

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Solution

The fourth proportional to 6,415.55, 9,625.95 and 2,904.60 is: 4,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.55 : 9,625.95 = 2,904.60 : x
  2. Step 2: Convert to fraction form
    6,415.55/9,625.95 = 2,904.60/x
  3. Step 3: Cross multiply
    6,415.55x = 9,625.95 × 2,904.60
  4. Step 4: Simplify right side
    6,415.55x = 27,959,534.37
  5. Step 5: Solve for x
    x = 27,959,534.37/6,415.55
  6. Step 6: Final answer
    x = 4,358.09

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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.