Home / 2,539.28-3,807-1,384.40

Finding the Fourth Proportional to 2,539.28, 3,807 and 1,384.40

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Solution

The fourth proportional to 2,539.28, 3,807 and 1,384.40 is: 2,075.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.28 : 3,807 = 1,384.40 : x
  2. Step 2: Convert to fraction form
    2,539.28/3,807 = 1,384.40/x
  3. Step 3: Cross multiply
    2,539.28x = 3,807 × 1,384.40
  4. Step 4: Simplify right side
    2,539.28x = 5,270,410.80
  5. Step 5: Solve for x
    x = 5,270,410.80/2,539.28
  6. Step 6: Final answer
    x = 2,075.55

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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.