Home / 2,222.30-3,065.40-1,781.26

Finding the Fourth Proportional to 2,222.30, 3,065.40 and 1,781.26

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Solution

The fourth proportional to 2,222.30, 3,065.40 and 1,781.26 is: 2,457.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.30 : 3,065.40 = 1,781.26 : x
  2. Step 2: Convert to fraction form
    2,222.30/3,065.40 = 1,781.26/x
  3. Step 3: Cross multiply
    2,222.30x = 3,065.40 × 1,781.26
  4. Step 4: Simplify right side
    2,222.30x = 5,460,266.74
  5. Step 5: Solve for x
    x = 5,460,266.74/2,222.30
  6. Step 6: Final answer
    x = 2,457.03

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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.