Home / 2,919.02-4,028.24-1,871.08

Finding the Fourth Proportional to 2,919.02, 4,028.24 and 1,871.08

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Solution

The fourth proportional to 2,919.02, 4,028.24 and 1,871.08 is: 2,582.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.02 : 4,028.24 = 1,871.08 : x
  2. Step 2: Convert to fraction form
    2,919.02/4,028.24 = 1,871.08/x
  3. Step 3: Cross multiply
    2,919.02x = 4,028.24 × 1,871.08
  4. Step 4: Simplify right side
    2,919.02x = 7,537,153.91
  5. Step 5: Solve for x
    x = 7,537,153.91/2,919.02
  6. Step 6: Final answer
    x = 2,582.09

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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.