Home / 2,955.56-4,078.65-1,629.32

Finding the Fourth Proportional to 2,955.56, 4,078.65 and 1,629.32

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Solution

The fourth proportional to 2,955.56, 4,078.65 and 1,629.32 is: 2,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.56 : 4,078.65 = 1,629.32 : x
  2. Step 2: Convert to fraction form
    2,955.56/4,078.65 = 1,629.32/x
  3. Step 3: Cross multiply
    2,955.56x = 4,078.65 × 1,629.32
  4. Step 4: Simplify right side
    2,955.56x = 6,645,426.02
  5. Step 5: Solve for x
    x = 6,645,426.02/2,955.56
  6. Step 6: Final answer
    x = 2,248.45

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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.