Home / 2,698.95-4,048.90-1,238.25

Finding the Fourth Proportional to 2,698.95, 4,048.90 and 1,238.25

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Solution

The fourth proportional to 2,698.95, 4,048.90 and 1,238.25 is: 1,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.95 : 4,048.90 = 1,238.25 : x
  2. Step 2: Convert to fraction form
    2,698.95/4,048.90 = 1,238.25/x
  3. Step 3: Cross multiply
    2,698.95x = 4,048.90 × 1,238.25
  4. Step 4: Simplify right side
    2,698.95x = 5,013,569.48
  5. Step 5: Solve for x
    x = 5,013,569.48/2,698.95
  6. Step 6: Final answer
    x = 1,857.60

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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.