Home / 3,484.48-4,808.28-1,912.18

Finding the Fourth Proportional to 3,484.48, 4,808.28 and 1,912.18

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Solution

The fourth proportional to 3,484.48, 4,808.28 and 1,912.18 is: 2,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.48 : 4,808.28 = 1,912.18 : x
  2. Step 2: Convert to fraction form
    3,484.48/4,808.28 = 1,912.18/x
  3. Step 3: Cross multiply
    3,484.48x = 4,808.28 × 1,912.18
  4. Step 4: Simplify right side
    3,484.48x = 9,194,296.85
  5. Step 5: Solve for x
    x = 9,194,296.85/3,484.48
  6. Step 6: Final answer
    x = 2,638.64

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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.