Home / 2,539.48-3,503.77-1,420.29

Finding the Fourth Proportional to 2,539.48, 3,503.77 and 1,420.29

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Solution

The fourth proportional to 2,539.48, 3,503.77 and 1,420.29 is: 1,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.48 : 3,503.77 = 1,420.29 : x
  2. Step 2: Convert to fraction form
    2,539.48/3,503.77 = 1,420.29/x
  3. Step 3: Cross multiply
    2,539.48x = 3,503.77 × 1,420.29
  4. Step 4: Simplify right side
    2,539.48x = 4,976,369.49
  5. Step 5: Solve for x
    x = 4,976,369.49/2,539.48
  6. Step 6: Final answer
    x = 1,959.60

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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.