Home / 5,689.44-7,852.48-3,420.16

Finding the Fourth Proportional to 5,689.44, 7,852.48 and 3,420.16

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Solution

The fourth proportional to 5,689.44, 7,852.48 and 3,420.16 is: 4,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.44 : 7,852.48 = 3,420.16 : x
  2. Step 2: Convert to fraction form
    5,689.44/7,852.48 = 3,420.16/x
  3. Step 3: Cross multiply
    5,689.44x = 7,852.48 × 3,420.16
  4. Step 4: Simplify right side
    5,689.44x = 26,856,738.00
  5. Step 5: Solve for x
    x = 26,856,738.00/5,689.44
  6. Step 6: Final answer
    x = 4,720.45

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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.