Home / 3,543.19-4,889.61-1,971.25

Finding the Fourth Proportional to 3,543.19, 4,889.61 and 1,971.25

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Solution

The fourth proportional to 3,543.19, 4,889.61 and 1,971.25 is: 2,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.19 : 4,889.61 = 1,971.25 : x
  2. Step 2: Convert to fraction form
    3,543.19/4,889.61 = 1,971.25/x
  3. Step 3: Cross multiply
    3,543.19x = 4,889.61 × 1,971.25
  4. Step 4: Simplify right side
    3,543.19x = 9,638,643.71
  5. Step 5: Solve for x
    x = 9,638,643.71/3,543.19
  6. Step 6: Final answer
    x = 2,720.33

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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.