Home / 2,017.65-2,783.84-1,271.55

Finding the Fourth Proportional to 2,017.65, 2,783.84 and 1,271.55

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Solution

The fourth proportional to 2,017.65, 2,783.84 and 1,271.55 is: 1,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.65 : 2,783.84 = 1,271.55 : x
  2. Step 2: Convert to fraction form
    2,017.65/2,783.84 = 1,271.55/x
  3. Step 3: Cross multiply
    2,017.65x = 2,783.84 × 1,271.55
  4. Step 4: Simplify right side
    2,017.65x = 3,539,785.39
  5. Step 5: Solve for x
    x = 3,539,785.39/2,017.65
  6. Step 6: Final answer
    x = 1,754.41

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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.