Home / 2,420.98-3,339.68-1,973.54

Finding the Fourth Proportional to 2,420.98, 3,339.68 and 1,973.54

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Solution

The fourth proportional to 2,420.98, 3,339.68 and 1,973.54 is: 2,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.98 : 3,339.68 = 1,973.54 : x
  2. Step 2: Convert to fraction form
    2,420.98/3,339.68 = 1,973.54/x
  3. Step 3: Cross multiply
    2,420.98x = 3,339.68 × 1,973.54
  4. Step 4: Simplify right side
    2,420.98x = 6,590,992.07
  5. Step 5: Solve for x
    x = 6,590,992.07/2,420.98
  6. Step 6: Final answer
    x = 2,722.45

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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.