Home / 3,122.48-4,308.96-1,706.16

Finding the Fourth Proportional to 3,122.48, 4,308.96 and 1,706.16

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Solution

The fourth proportional to 3,122.48, 4,308.96 and 1,706.16 is: 2,354.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.48 : 4,308.96 = 1,706.16 : x
  2. Step 2: Convert to fraction form
    3,122.48/4,308.96 = 1,706.16/x
  3. Step 3: Cross multiply
    3,122.48x = 4,308.96 × 1,706.16
  4. Step 4: Simplify right side
    3,122.48x = 7,351,775.19
  5. Step 5: Solve for x
    x = 7,351,775.19/3,122.48
  6. Step 6: Final answer
    x = 2,354.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.