Home / 2,759.81-4,137.75-1,298.16

Finding the Fourth Proportional to 2,759.81, 4,137.75 and 1,298.16

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Solution

The fourth proportional to 2,759.81, 4,137.75 and 1,298.16 is: 1,946.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.81 : 4,137.75 = 1,298.16 : x
  2. Step 2: Convert to fraction form
    2,759.81/4,137.75 = 1,298.16/x
  3. Step 3: Cross multiply
    2,759.81x = 4,137.75 × 1,298.16
  4. Step 4: Simplify right side
    2,759.81x = 5,371,461.54
  5. Step 5: Solve for x
    x = 5,371,461.54/2,759.81
  6. Step 6: Final answer
    x = 1,946.32

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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.