Home / 2,011.28-2,775.21-1,214.39

Finding the Fourth Proportional to 2,011.28, 2,775.21 and 1,214.39

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Solution

The fourth proportional to 2,011.28, 2,775.21 and 1,214.39 is: 1,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.28 : 2,775.21 = 1,214.39 : x
  2. Step 2: Convert to fraction form
    2,011.28/2,775.21 = 1,214.39/x
  3. Step 3: Cross multiply
    2,011.28x = 2,775.21 × 1,214.39
  4. Step 4: Simplify right side
    2,011.28x = 3,370,196.49
  5. Step 5: Solve for x
    x = 3,370,196.49/2,011.28
  6. Step 6: Final answer
    x = 1,675.65

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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.