Home / 2,275.90-3,420.02-1,236.67

Finding the Fourth Proportional to 2,275.90, 3,420.02 and 1,236.67

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Solution

The fourth proportional to 2,275.90, 3,420.02 and 1,236.67 is: 1,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.90 : 3,420.02 = 1,236.67 : x
  2. Step 2: Convert to fraction form
    2,275.90/3,420.02 = 1,236.67/x
  3. Step 3: Cross multiply
    2,275.90x = 3,420.02 × 1,236.67
  4. Step 4: Simplify right side
    2,275.90x = 4,229,430.68
  5. Step 5: Solve for x
    x = 4,229,430.68/2,275.90
  6. Step 6: Final answer
    x = 1,858.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.