Home / 2,220.81-3,065.63-1,522.59

Finding the Fourth Proportional to 2,220.81, 3,065.63 and 1,522.59

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Solution

The fourth proportional to 2,220.81, 3,065.63 and 1,522.59 is: 2,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.81 : 3,065.63 = 1,522.59 : x
  2. Step 2: Convert to fraction form
    2,220.81/3,065.63 = 1,522.59/x
  3. Step 3: Cross multiply
    2,220.81x = 3,065.63 × 1,522.59
  4. Step 4: Simplify right side
    2,220.81x = 4,667,689.97
  5. Step 5: Solve for x
    x = 4,667,689.97/2,220.81
  6. Step 6: Final answer
    x = 2,101.80

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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.