Home / 4,078.72-6,117.48-1,157.08

Finding the Fourth Proportional to 4,078.72, 6,117.48 and 1,157.08

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Solution

The fourth proportional to 4,078.72, 6,117.48 and 1,157.08 is: 1,735.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.72 : 6,117.48 = 1,157.08 : x
  2. Step 2: Convert to fraction form
    4,078.72/6,117.48 = 1,157.08/x
  3. Step 3: Cross multiply
    4,078.72x = 6,117.48 × 1,157.08
  4. Step 4: Simplify right side
    4,078.72x = 7,078,413.76
  5. Step 5: Solve for x
    x = 7,078,413.76/4,078.72
  6. Step 6: Final answer
    x = 1,735.45

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Half scale
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Double scale
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Similar ratio
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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.