Home / 2,485.64-3,430.14-1,366.60

Finding the Fourth Proportional to 2,485.64, 3,430.14 and 1,366.60

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Solution

The fourth proportional to 2,485.64, 3,430.14 and 1,366.60 is: 1,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.64 : 3,430.14 = 1,366.60 : x
  2. Step 2: Convert to fraction form
    2,485.64/3,430.14 = 1,366.60/x
  3. Step 3: Cross multiply
    2,485.64x = 3,430.14 × 1,366.60
  4. Step 4: Simplify right side
    2,485.64x = 4,687,629.32
  5. Step 5: Solve for x
    x = 4,687,629.32/2,485.64
  6. Step 6: Final answer
    x = 1,885.88

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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.