Home / 4,240.98-5,846.40-2,978.19

Finding the Fourth Proportional to 4,240.98, 5,846.40 and 2,978.19

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Solution

The fourth proportional to 4,240.98, 5,846.40 and 2,978.19 is: 4,105.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.98 : 5,846.40 = 2,978.19 : x
  2. Step 2: Convert to fraction form
    4,240.98/5,846.40 = 2,978.19/x
  3. Step 3: Cross multiply
    4,240.98x = 5,846.40 × 2,978.19
  4. Step 4: Simplify right side
    4,240.98x = 17,411,690.02
  5. Step 5: Solve for x
    x = 17,411,690.02/4,240.98
  6. Step 6: Final answer
    x = 4,105.58

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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.