Home / 2,681.75-4,022.77-1,038.15

Finding the Fourth Proportional to 2,681.75, 4,022.77 and 1,038.15

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Solution

The fourth proportional to 2,681.75, 4,022.77 and 1,038.15 is: 1,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.75 : 4,022.77 = 1,038.15 : x
  2. Step 2: Convert to fraction form
    2,681.75/4,022.77 = 1,038.15/x
  3. Step 3: Cross multiply
    2,681.75x = 4,022.77 × 1,038.15
  4. Step 4: Simplify right side
    2,681.75x = 4,176,238.68
  5. Step 5: Solve for x
    x = 4,176,238.68/2,681.75
  6. Step 6: Final answer
    x = 1,557.28

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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.