Home / 2,559.47-3,531.70-1,440.19

Finding the Fourth Proportional to 2,559.47, 3,531.70 and 1,440.19

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Solution

The fourth proportional to 2,559.47, 3,531.70 and 1,440.19 is: 1,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,559.47 : 3,531.70 = 1,440.19 : x
  2. Step 2: Convert to fraction form
    2,559.47/3,531.70 = 1,440.19/x
  3. Step 3: Cross multiply
    2,559.47x = 3,531.70 × 1,440.19
  4. Step 4: Simplify right side
    2,559.47x = 5,086,330.20
  5. Step 5: Solve for x
    x = 5,086,330.20/2,559.47
  6. Step 6: Final answer
    x = 1,987.26

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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.