Home / 4,220.74-6,330.55-1,298.80

Finding the Fourth Proportional to 4,220.74, 6,330.55 and 1,298.80

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Solution

The fourth proportional to 4,220.74, 6,330.55 and 1,298.80 is: 1,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.74 : 6,330.55 = 1,298.80 : x
  2. Step 2: Convert to fraction form
    4,220.74/6,330.55 = 1,298.80/x
  3. Step 3: Cross multiply
    4,220.74x = 6,330.55 × 1,298.80
  4. Step 4: Simplify right side
    4,220.74x = 8,222,118.34
  5. Step 5: Solve for x
    x = 8,222,118.34/4,220.74
  6. Step 6: Final answer
    x = 1,948.03

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