Home / 4,890.51-7,335.75-1,968.78

Finding the Fourth Proportional to 4,890.51, 7,335.75 and 1,968.78

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Solution

The fourth proportional to 4,890.51, 7,335.75 and 1,968.78 is: 2,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.51 : 7,335.75 = 1,968.78 : x
  2. Step 2: Convert to fraction form
    4,890.51/7,335.75 = 1,968.78/x
  3. Step 3: Cross multiply
    4,890.51x = 7,335.75 × 1,968.78
  4. Step 4: Simplify right side
    4,890.51x = 14,442,477.89
  5. Step 5: Solve for x
    x = 14,442,477.89/4,890.51
  6. Step 6: Final answer
    x = 2,953.16

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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.