Home / 2,119.34-2,924.09-1,222.67

Finding the Fourth Proportional to 2,119.34, 2,924.09 and 1,222.67

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Solution

The fourth proportional to 2,119.34, 2,924.09 and 1,222.67 is: 1,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.34 : 2,924.09 = 1,222.67 : x
  2. Step 2: Convert to fraction form
    2,119.34/2,924.09 = 1,222.67/x
  3. Step 3: Cross multiply
    2,119.34x = 2,924.09 × 1,222.67
  4. Step 4: Simplify right side
    2,119.34x = 3,575,192.96
  5. Step 5: Solve for x
    x = 3,575,192.96/2,119.34
  6. Step 6: Final answer
    x = 1,686.94

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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.