Home / 1,384.20-2,065.46-1,376.10

Finding the Fourth Proportional to 1,384.20, 2,065.46 and 1,376.10

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Solution

The fourth proportional to 1,384.20, 2,065.46 and 1,376.10 is: 2,053.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.20 : 2,065.46 = 1,376.10 : x
  2. Step 2: Convert to fraction form
    1,384.20/2,065.46 = 1,376.10/x
  3. Step 3: Cross multiply
    1,384.20x = 2,065.46 × 1,376.10
  4. Step 4: Simplify right side
    1,384.20x = 2,842,272.63
  5. Step 5: Solve for x
    x = 2,842,272.63/1,384.20
  6. Step 6: Final answer
    x = 2,053.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.