Home / 2,017.41-2,783.95-1,121.21

Finding the Fourth Proportional to 2,017.41, 2,783.95 and 1,121.21

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Solution

The fourth proportional to 2,017.41, 2,783.95 and 1,121.21 is: 1,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.41 : 2,783.95 = 1,121.21 : x
  2. Step 2: Convert to fraction form
    2,017.41/2,783.95 = 1,121.21/x
  3. Step 3: Cross multiply
    2,017.41x = 2,783.95 × 1,121.21
  4. Step 4: Simplify right side
    2,017.41x = 3,121,379.36
  5. Step 5: Solve for x
    x = 3,121,379.36/2,017.41
  6. Step 6: Final answer
    x = 1,547.22

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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.