Home / 2,948.75-4,070.96-1,955.38

Finding the Fourth Proportional to 2,948.75, 4,070.96 and 1,955.38

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Solution

The fourth proportional to 2,948.75, 4,070.96 and 1,955.38 is: 2,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.75 : 4,070.96 = 1,955.38 : x
  2. Step 2: Convert to fraction form
    2,948.75/4,070.96 = 1,955.38/x
  3. Step 3: Cross multiply
    2,948.75x = 4,070.96 × 1,955.38
  4. Step 4: Simplify right side
    2,948.75x = 7,960,268.78
  5. Step 5: Solve for x
    x = 7,960,268.78/2,948.75
  6. Step 6: Final answer
    x = 2,699.54

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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.