Home / 2,918.57-4,027.70-1,800.25

Finding the Fourth Proportional to 2,918.57, 4,027.70 and 1,800.25

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Solution

The fourth proportional to 2,918.57, 4,027.70 and 1,800.25 is: 2,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.57 : 4,027.70 = 1,800.25 : x
  2. Step 2: Convert to fraction form
    2,918.57/4,027.70 = 1,800.25/x
  3. Step 3: Cross multiply
    2,918.57x = 4,027.70 × 1,800.25
  4. Step 4: Simplify right side
    2,918.57x = 7,250,866.93
  5. Step 5: Solve for x
    x = 7,250,866.93/2,918.57
  6. Step 6: Final answer
    x = 2,484.39

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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.