Home / 1,619.40-2,237.34-1,539.48

Finding the Fourth Proportional to 1,619.40, 2,237.34 and 1,539.48

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Solution

The fourth proportional to 1,619.40, 2,237.34 and 1,539.48 is: 2,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.40 : 2,237.34 = 1,539.48 : x
  2. Step 2: Convert to fraction form
    1,619.40/2,237.34 = 1,539.48/x
  3. Step 3: Cross multiply
    1,619.40x = 2,237.34 × 1,539.48
  4. Step 4: Simplify right side
    1,619.40x = 3,444,340.18
  5. Step 5: Solve for x
    x = 3,444,340.18/1,619.40
  6. Step 6: Final answer
    x = 2,126.92

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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.