Home / 7,339.48-10,128.44-3,982.32

Finding the Fourth Proportional to 7,339.48, 10,128.44 and 3,982.32

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Solution

The fourth proportional to 7,339.48, 10,128.44 and 3,982.32 is: 5,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.48 : 10,128.44 = 3,982.32 : x
  2. Step 2: Convert to fraction form
    7,339.48/10,128.44 = 3,982.32/x
  3. Step 3: Cross multiply
    7,339.48x = 10,128.44 × 3,982.32
  4. Step 4: Simplify right side
    7,339.48x = 40,334,689.18
  5. Step 5: Solve for x
    x = 40,334,689.18/7,339.48
  6. Step 6: Final answer
    x = 5,495.58

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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.