Home / 3,386.72-4,669.98-2,940.68

Finding the Fourth Proportional to 3,386.72, 4,669.98 and 2,940.68

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Solution

The fourth proportional to 3,386.72, 4,669.98 and 2,940.68 is: 4,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.72 : 4,669.98 = 2,940.68 : x
  2. Step 2: Convert to fraction form
    3,386.72/4,669.98 = 2,940.68/x
  3. Step 3: Cross multiply
    3,386.72x = 4,669.98 × 2,940.68
  4. Step 4: Simplify right side
    3,386.72x = 13,732,916.79
  5. Step 5: Solve for x
    x = 13,732,916.79/3,386.72
  6. Step 6: Final answer
    x = 4,054.93

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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.