Home / 1,919.98-2,880.02-1,436.11

Finding the Fourth Proportional to 1,919.98, 2,880.02 and 1,436.11

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Solution

The fourth proportional to 1,919.98, 2,880.02 and 1,436.11 is: 2,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.98 : 2,880.02 = 1,436.11 : x
  2. Step 2: Convert to fraction form
    1,919.98/2,880.02 = 1,436.11/x
  3. Step 3: Cross multiply
    1,919.98x = 2,880.02 × 1,436.11
  4. Step 4: Simplify right side
    1,919.98x = 4,136,025.52
  5. Step 5: Solve for x
    x = 4,136,025.52/1,919.98
  6. Step 6: Final answer
    x = 2,154.20

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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.