Home / 2,938.50-4,053.87-1,819.08

Finding the Fourth Proportional to 2,938.50, 4,053.87 and 1,819.08

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Solution

The fourth proportional to 2,938.50, 4,053.87 and 1,819.08 is: 2,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.50 : 4,053.87 = 1,819.08 : x
  2. Step 2: Convert to fraction form
    2,938.50/4,053.87 = 1,819.08/x
  3. Step 3: Cross multiply
    2,938.50x = 4,053.87 × 1,819.08
  4. Step 4: Simplify right side
    2,938.50x = 7,374,313.84
  5. Step 5: Solve for x
    x = 7,374,313.84/2,938.50
  6. Step 6: Final answer
    x = 2,509.55

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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.