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Finding the Fourth Proportional to 3,603.78, 4,968.74 and 3,007.15

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Solution

The fourth proportional to 3,603.78, 4,968.74 and 3,007.15 is: 4,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.78 : 4,968.74 = 3,007.15 : x
  2. Step 2: Convert to fraction form
    3,603.78/4,968.74 = 3,007.15/x
  3. Step 3: Cross multiply
    3,603.78x = 4,968.74 × 3,007.15
  4. Step 4: Simplify right side
    3,603.78x = 14,941,746.49
  5. Step 5: Solve for x
    x = 14,941,746.49/3,603.78
  6. Step 6: Final answer
    x = 4,146.13

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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.