Home / 2,301.48-3,450.95-820.47

Finding the Fourth Proportional to 2,301.48, 3,450.95 and 820.47

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Solution

The fourth proportional to 2,301.48, 3,450.95 and 820.47 is: 1,230.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.48 : 3,450.95 = 820.47 : x
  2. Step 2: Convert to fraction form
    2,301.48/3,450.95 = 820.47/x
  3. Step 3: Cross multiply
    2,301.48x = 3,450.95 × 820.47
  4. Step 4: Simplify right side
    2,301.48x = 2,831,393.21
  5. Step 5: Solve for x
    x = 2,831,393.21/2,301.48
  6. Step 6: Final answer
    x = 1,230.25

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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.