Home / 2,430.45-3,350.43-1,720.08

Finding the Fourth Proportional to 2,430.45, 3,350.43 and 1,720.08

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Solution

The fourth proportional to 2,430.45, 3,350.43 and 1,720.08 is: 2,371.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.45 : 3,350.43 = 1,720.08 : x
  2. Step 2: Convert to fraction form
    2,430.45/3,350.43 = 1,720.08/x
  3. Step 3: Cross multiply
    2,430.45x = 3,350.43 × 1,720.08
  4. Step 4: Simplify right side
    2,430.45x = 5,762,999.03
  5. Step 5: Solve for x
    x = 5,762,999.03/2,430.45
  6. Step 6: Final answer
    x = 2,371.17

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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.