Home / 1,519.10-2,278.65-1,384.70

Finding the Fourth Proportional to 1,519.10, 2,278.65 and 1,384.70

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Solution

The fourth proportional to 1,519.10, 2,278.65 and 1,384.70 is: 2,077.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.10 : 2,278.65 = 1,384.70 : x
  2. Step 2: Convert to fraction form
    1,519.10/2,278.65 = 1,384.70/x
  3. Step 3: Cross multiply
    1,519.10x = 2,278.65 × 1,384.70
  4. Step 4: Simplify right side
    1,519.10x = 3,155,246.66
  5. Step 5: Solve for x
    x = 3,155,246.66/1,519.10
  6. Step 6: Final answer
    x = 2,077.05

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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.