Home / 2,457.22-3,390.23-2,220.41

Finding the Fourth Proportional to 2,457.22, 3,390.23 and 2,220.41

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Solution

The fourth proportional to 2,457.22, 3,390.23 and 2,220.41 is: 3,063.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.22 : 3,390.23 = 2,220.41 : x
  2. Step 2: Convert to fraction form
    2,457.22/3,390.23 = 2,220.41/x
  3. Step 3: Cross multiply
    2,457.22x = 3,390.23 × 2,220.41
  4. Step 4: Simplify right side
    2,457.22x = 7,527,699.28
  5. Step 5: Solve for x
    x = 7,527,699.28/2,457.22
  6. Step 6: Final answer
    x = 3,063.50

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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.