Home / 3,112.95-4,295.90-1,854.63

Finding the Fourth Proportional to 3,112.95, 4,295.90 and 1,854.63

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Solution

The fourth proportional to 3,112.95, 4,295.90 and 1,854.63 is: 2,559.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.95 : 4,295.90 = 1,854.63 : x
  2. Step 2: Convert to fraction form
    3,112.95/4,295.90 = 1,854.63/x
  3. Step 3: Cross multiply
    3,112.95x = 4,295.90 × 1,854.63
  4. Step 4: Simplify right side
    3,112.95x = 7,967,305.02
  5. Step 5: Solve for x
    x = 7,967,305.02/3,112.95
  6. Step 6: Final answer
    x = 2,559.41

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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.