Home / 2,430.61-3,350.66-1,720.25

Finding the Fourth Proportional to 2,430.61, 3,350.66 and 1,720.25

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Solution

The fourth proportional to 2,430.61, 3,350.66 and 1,720.25 is: 2,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.61 : 3,350.66 = 1,720.25 : x
  2. Step 2: Convert to fraction form
    2,430.61/3,350.66 = 1,720.25/x
  3. Step 3: Cross multiply
    2,430.61x = 3,350.66 × 1,720.25
  4. Step 4: Simplify right side
    2,430.61x = 5,763,985.54
  5. Step 5: Solve for x
    x = 5,763,985.54/2,430.61
  6. Step 6: Final answer
    x = 2,371.42

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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.