Home / 2,420.01-3,628.08-1,122.39

Finding the Fourth Proportional to 2,420.01, 3,628.08 and 1,122.39

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Solution

The fourth proportional to 2,420.01, 3,628.08 and 1,122.39 is: 1,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.01 : 3,628.08 = 1,122.39 : x
  2. Step 2: Convert to fraction form
    2,420.01/3,628.08 = 1,122.39/x
  3. Step 3: Cross multiply
    2,420.01x = 3,628.08 × 1,122.39
  4. Step 4: Simplify right side
    2,420.01x = 4,072,120.71
  5. Step 5: Solve for x
    x = 4,072,120.71/2,420.01
  6. Step 6: Final answer
    x = 1,682.69

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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.