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Finding the Fourth Proportional to 3,160.72, 4,703.76 and 3,055.61

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Solution

The fourth proportional to 3,160.72, 4,703.76 and 3,055.61 is: 4,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.72 : 4,703.76 = 3,055.61 : x
  2. Step 2: Convert to fraction form
    3,160.72/4,703.76 = 3,055.61/x
  3. Step 3: Cross multiply
    3,160.72x = 4,703.76 × 3,055.61
  4. Step 4: Simplify right side
    3,160.72x = 14,372,840.82
  5. Step 5: Solve for x
    x = 14,372,840.82/3,160.72
  6. Step 6: Final answer
    x = 4,547.33

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.