Home / 2,955.08-4,078.84-1,947.52

Finding the Fourth Proportional to 2,955.08, 4,078.84 and 1,947.52

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Solution

The fourth proportional to 2,955.08, 4,078.84 and 1,947.52 is: 2,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.08 : 4,078.84 = 1,947.52 : x
  2. Step 2: Convert to fraction form
    2,955.08/4,078.84 = 1,947.52/x
  3. Step 3: Cross multiply
    2,955.08x = 4,078.84 × 1,947.52
  4. Step 4: Simplify right side
    2,955.08x = 7,943,622.48
  5. Step 5: Solve for x
    x = 7,943,622.48/2,955.08
  6. Step 6: Final answer
    x = 2,688.12

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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.