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Finding the Fourth Proportional to 3,068.39, 4,603.34 and 988.60

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Solution

The fourth proportional to 3,068.39, 4,603.34 and 988.60 is: 1,483.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.39 : 4,603.34 = 988.60 : x
  2. Step 2: Convert to fraction form
    3,068.39/4,603.34 = 988.60/x
  3. Step 3: Cross multiply
    3,068.39x = 4,603.34 × 988.60
  4. Step 4: Simplify right side
    3,068.39x = 4,550,845.47
  5. Step 5: Solve for x
    x = 4,550,845.47/3,068.39
  6. Step 6: Final answer
    x = 1,483.14

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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.