Home / 2,918.88-4,025.43-1,870.74

Finding the Fourth Proportional to 2,918.88, 4,025.43 and 1,870.74

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Solution

The fourth proportional to 2,918.88, 4,025.43 and 1,870.74 is: 2,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.88 : 4,025.43 = 1,870.74 : x
  2. Step 2: Convert to fraction form
    2,918.88/4,025.43 = 1,870.74/x
  3. Step 3: Cross multiply
    2,918.88x = 4,025.43 × 1,870.74
  4. Step 4: Simplify right side
    2,918.88x = 7,530,532.92
  5. Step 5: Solve for x
    x = 7,530,532.92/2,918.88
  6. Step 6: Final answer
    x = 2,579.94

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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.