Home / 4,651.42-6,420.64-3,080.02

Finding the Fourth Proportional to 4,651.42, 6,420.64 and 3,080.02

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Solution

The fourth proportional to 4,651.42, 6,420.64 and 3,080.02 is: 4,251.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,651.42 : 6,420.64 = 3,080.02 : x
  2. Step 2: Convert to fraction form
    4,651.42/6,420.64 = 3,080.02/x
  3. Step 3: Cross multiply
    4,651.42x = 6,420.64 × 3,080.02
  4. Step 4: Simplify right side
    4,651.42x = 19,775,667.51
  5. Step 5: Solve for x
    x = 19,775,667.51/4,651.42
  6. Step 6: Final answer
    x = 4,251.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.