Home / 1,539.60-2,118.60-1,474.08

Finding the Fourth Proportional to 1,539.60, 2,118.60 and 1,474.08

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Solution

The fourth proportional to 1,539.60, 2,118.60 and 1,474.08 is: 2,028.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.60 : 2,118.60 = 1,474.08 : x
  2. Step 2: Convert to fraction form
    1,539.60/2,118.60 = 1,474.08/x
  3. Step 3: Cross multiply
    1,539.60x = 2,118.60 × 1,474.08
  4. Step 4: Simplify right side
    1,539.60x = 3,122,985.89
  5. Step 5: Solve for x
    x = 3,122,985.89/1,539.60
  6. Step 6: Final answer
    x = 2,028.44

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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.