Home / 2,919.06-4,029.21-1,870.92

Finding the Fourth Proportional to 2,919.06, 4,029.21 and 1,870.92

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Solution

The fourth proportional to 2,919.06, 4,029.21 and 1,870.92 is: 2,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.06 : 4,029.21 = 1,870.92 : x
  2. Step 2: Convert to fraction form
    2,919.06/4,029.21 = 1,870.92/x
  3. Step 3: Cross multiply
    2,919.06x = 4,029.21 × 1,870.92
  4. Step 4: Simplify right side
    2,919.06x = 7,538,329.57
  5. Step 5: Solve for x
    x = 7,538,329.57/2,919.06
  6. Step 6: Final answer
    x = 2,582.45

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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.