Home / 2,970.41-4,094.35-2,638.31

Finding the Fourth Proportional to 2,970.41, 4,094.35 and 2,638.31

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Solution

The fourth proportional to 2,970.41, 4,094.35 and 2,638.31 is: 3,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.41 : 4,094.35 = 2,638.31 : x
  2. Step 2: Convert to fraction form
    2,970.41/4,094.35 = 2,638.31/x
  3. Step 3: Cross multiply
    2,970.41x = 4,094.35 × 2,638.31
  4. Step 4: Simplify right side
    2,970.41x = 10,802,137.48
  5. Step 5: Solve for x
    x = 10,802,137.48/2,970.41
  6. Step 6: Final answer
    x = 3,636.59

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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.