Home / 6,415.68-9,616.21-2,715.60

Finding the Fourth Proportional to 6,415.68, 9,616.21 and 2,715.60

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Solution

The fourth proportional to 6,415.68, 9,616.21 and 2,715.60 is: 4,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.68 : 9,616.21 = 2,715.60 : x
  2. Step 2: Convert to fraction form
    6,415.68/9,616.21 = 2,715.60/x
  3. Step 3: Cross multiply
    6,415.68x = 9,616.21 × 2,715.60
  4. Step 4: Simplify right side
    6,415.68x = 26,113,779.88
  5. Step 5: Solve for x
    x = 26,113,779.88/6,415.68
  6. Step 6: Final answer
    x = 4,070.31

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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.