Home / 2,853.84-4,277.88-1,189.20

Finding the Fourth Proportional to 2,853.84, 4,277.88 and 1,189.20

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Solution

The fourth proportional to 2,853.84, 4,277.88 and 1,189.20 is: 1,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.84 : 4,277.88 = 1,189.20 : x
  2. Step 2: Convert to fraction form
    2,853.84/4,277.88 = 1,189.20/x
  3. Step 3: Cross multiply
    2,853.84x = 4,277.88 × 1,189.20
  4. Step 4: Simplify right side
    2,853.84x = 5,087,254.90
  5. Step 5: Solve for x
    x = 5,087,254.90/2,853.84
  6. Step 6: Final answer
    x = 1,782.60

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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.