Home / 3,055.68-4,220.64-3,009.60

Finding the Fourth Proportional to 3,055.68, 4,220.64 and 3,009.60

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Solution

The fourth proportional to 3,055.68, 4,220.64 and 3,009.60 is: 4,156.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.68 : 4,220.64 = 3,009.60 : x
  2. Step 2: Convert to fraction form
    3,055.68/4,220.64 = 3,009.60/x
  3. Step 3: Cross multiply
    3,055.68x = 4,220.64 × 3,009.60
  4. Step 4: Simplify right side
    3,055.68x = 12,702,438.14
  5. Step 5: Solve for x
    x = 12,702,438.14/3,055.68
  6. Step 6: Final answer
    x = 4,156.99

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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.