Home / 1,292.17-1,938.44-470.29

Finding the Fourth Proportional to 1,292.17, 1,938.44 and 470.29

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Solution

The fourth proportional to 1,292.17, 1,938.44 and 470.29 is: 705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.17 : 1,938.44 = 470.29 : x
  2. Step 2: Convert to fraction form
    1,292.17/1,938.44 = 470.29/x
  3. Step 3: Cross multiply
    1,292.17x = 1,938.44 × 470.29
  4. Step 4: Simplify right side
    1,292.17x = 911,626.60
  5. Step 5: Solve for x
    x = 911,626.60/1,292.17
  6. Step 6: Final answer
    x = 705.50

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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.