Home / 1,470.99-2,206.52-1,385.39

Finding the Fourth Proportional to 1,470.99, 2,206.52 and 1,385.39

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Solution

The fourth proportional to 1,470.99, 2,206.52 and 1,385.39 is: 2,078.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.99 : 2,206.52 = 1,385.39 : x
  2. Step 2: Convert to fraction form
    1,470.99/2,206.52 = 1,385.39/x
  3. Step 3: Cross multiply
    1,470.99x = 2,206.52 × 1,385.39
  4. Step 4: Simplify right side
    1,470.99x = 3,056,872.78
  5. Step 5: Solve for x
    x = 3,056,872.78/1,470.99
  6. Step 6: Final answer
    x = 2,078.11

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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.