Home / 2,559.80-3,532.65-1,440.68

Finding the Fourth Proportional to 2,559.80, 3,532.65 and 1,440.68

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Solution

The fourth proportional to 2,559.80, 3,532.65 and 1,440.68 is: 1,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,559.80 : 3,532.65 = 1,440.68 : x
  2. Step 2: Convert to fraction form
    2,559.80/3,532.65 = 1,440.68/x
  3. Step 3: Cross multiply
    2,559.80x = 3,532.65 × 1,440.68
  4. Step 4: Simplify right side
    2,559.80x = 5,089,418.20
  5. Step 5: Solve for x
    x = 5,089,418.20/2,559.80
  6. Step 6: Final answer
    x = 1,988.21

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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.