Home / 2,719.48-4,075.54-1,948.28

Finding the Fourth Proportional to 2,719.48, 4,075.54 and 1,948.28

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Solution

The fourth proportional to 2,719.48, 4,075.54 and 1,948.28 is: 2,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.48 : 4,075.54 = 1,948.28 : x
  2. Step 2: Convert to fraction form
    2,719.48/4,075.54 = 1,948.28/x
  3. Step 3: Cross multiply
    2,719.48x = 4,075.54 × 1,948.28
  4. Step 4: Simplify right side
    2,719.48x = 7,940,293.07
  5. Step 5: Solve for x
    x = 7,940,293.07/2,719.48
  6. Step 6: Final answer
    x = 2,919.78

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1.5x scale

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.