Home / 1,619.93-2,427.60-1,253

Finding the Fourth Proportional to 1,619.93, 2,427.60 and 1,253

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Solution

The fourth proportional to 1,619.93, 2,427.60 and 1,253 is: 1,877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.93 : 2,427.60 = 1,253 : x
  2. Step 2: Convert to fraction form
    1,619.93/2,427.60 = 1,253/x
  3. Step 3: Cross multiply
    1,619.93x = 2,427.60 × 1,253
  4. Step 4: Simplify right side
    1,619.93x = 3,041,782.80
  5. Step 5: Solve for x
    x = 3,041,782.80/1,619.93
  6. Step 6: Final answer
    x = 1,877.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.