Home / 2,539.39-3,504.26-1,420.45

Finding the Fourth Proportional to 2,539.39, 3,504.26 and 1,420.45

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Solution

The fourth proportional to 2,539.39, 3,504.26 and 1,420.45 is: 1,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.39 : 3,504.26 = 1,420.45 : x
  2. Step 2: Convert to fraction form
    2,539.39/3,504.26 = 1,420.45/x
  3. Step 3: Cross multiply
    2,539.39x = 3,504.26 × 1,420.45
  4. Step 4: Simplify right side
    2,539.39x = 4,977,608.60
  5. Step 5: Solve for x
    x = 4,977,608.60/2,539.39
  6. Step 6: Final answer
    x = 1,960.16

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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.