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Finding the Fourth Proportional to 1,470.51, 2,206.27 and 739.49

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Solution

The fourth proportional to 1,470.51, 2,206.27 and 739.49 is: 1,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.51 : 2,206.27 = 739.49 : x
  2. Step 2: Convert to fraction form
    1,470.51/2,206.27 = 739.49/x
  3. Step 3: Cross multiply
    1,470.51x = 2,206.27 × 739.49
  4. Step 4: Simplify right side
    1,470.51x = 1,631,504.50
  5. Step 5: Solve for x
    x = 1,631,504.50/1,470.51
  6. Step 6: Final answer
    x = 1,109.48

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1.5x scale

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.