Home / 2,430.36-3,647.70-1,812.60

Finding the Fourth Proportional to 2,430.36, 3,647.70 and 1,812.60

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Solution

The fourth proportional to 2,430.36, 3,647.70 and 1,812.60 is: 2,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.36 : 3,647.70 = 1,812.60 : x
  2. Step 2: Convert to fraction form
    2,430.36/3,647.70 = 1,812.60/x
  3. Step 3: Cross multiply
    2,430.36x = 3,647.70 × 1,812.60
  4. Step 4: Simplify right side
    2,430.36x = 6,611,821.02
  5. Step 5: Solve for x
    x = 6,611,821.02/2,430.36
  6. Step 6: Final answer
    x = 2,720.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.