Home / 4,188.09-5,779.47-2,420.25

Finding the Fourth Proportional to 4,188.09, 5,779.47 and 2,420.25

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Solution

The fourth proportional to 4,188.09, 5,779.47 and 2,420.25 is: 3,339.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.09 : 5,779.47 = 2,420.25 : x
  2. Step 2: Convert to fraction form
    4,188.09/5,779.47 = 2,420.25/x
  3. Step 3: Cross multiply
    4,188.09x = 5,779.47 × 2,420.25
  4. Step 4: Simplify right side
    4,188.09x = 13,987,762.27
  5. Step 5: Solve for x
    x = 13,987,762.27/4,188.09
  6. Step 6: Final answer
    x = 3,339.89

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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.