Home / 6,276.42-9,415.64-2,116.87

Finding the Fourth Proportional to 6,276.42, 9,415.64 and 2,116.87

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Solution

The fourth proportional to 6,276.42, 9,415.64 and 2,116.87 is: 3,175.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.42 : 9,415.64 = 2,116.87 : x
  2. Step 2: Convert to fraction form
    6,276.42/9,415.64 = 2,116.87/x
  3. Step 3: Cross multiply
    6,276.42x = 9,415.64 × 2,116.87
  4. Step 4: Simplify right side
    6,276.42x = 19,931,667.60
  5. Step 5: Solve for x
    x = 19,931,667.60/6,276.42
  6. Step 6: Final answer
    x = 3,175.64

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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.