Home / 2,955.30-4,076.64-1,775.70

Finding the Fourth Proportional to 2,955.30, 4,076.64 and 1,775.70

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Solution

The fourth proportional to 2,955.30, 4,076.64 and 1,775.70 is: 2,449.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.30 : 4,076.64 = 1,775.70 : x
  2. Step 2: Convert to fraction form
    2,955.30/4,076.64 = 1,775.70/x
  3. Step 3: Cross multiply
    2,955.30x = 4,076.64 × 1,775.70
  4. Step 4: Simplify right side
    2,955.30x = 7,238,889.65
  5. Step 5: Solve for x
    x = 7,238,889.65/2,955.30
  6. Step 6: Final answer
    x = 2,449.46

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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.