Home / 4,638.78-6,413.85-4,055.58

Finding the Fourth Proportional to 4,638.78, 6,413.85 and 4,055.58

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Solution

The fourth proportional to 4,638.78, 6,413.85 and 4,055.58 is: 5,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.78 : 6,413.85 = 4,055.58 : x
  2. Step 2: Convert to fraction form
    4,638.78/6,413.85 = 4,055.58/x
  3. Step 3: Cross multiply
    4,638.78x = 6,413.85 × 4,055.58
  4. Step 4: Simplify right side
    4,638.78x = 26,011,881.78
  5. Step 5: Solve for x
    x = 26,011,881.78/4,638.78
  6. Step 6: Final answer
    x = 5,607.48

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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.