Home / 1,919.04-2,878.56-1,658.25

Finding the Fourth Proportional to 1,919.04, 2,878.56 and 1,658.25

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Solution

The fourth proportional to 1,919.04, 2,878.56 and 1,658.25 is: 2,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.04 : 2,878.56 = 1,658.25 : x
  2. Step 2: Convert to fraction form
    1,919.04/2,878.56 = 1,658.25/x
  3. Step 3: Cross multiply
    1,919.04x = 2,878.56 × 1,658.25
  4. Step 4: Simplify right side
    1,919.04x = 4,773,371.30
  5. Step 5: Solve for x
    x = 4,773,371.30/1,919.04
  6. Step 6: Final answer
    x = 2,487.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.