Home / 7,405.96-10,220.36-4,048.68

Finding the Fourth Proportional to 7,405.96, 10,220.36 and 4,048.68

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Solution

The fourth proportional to 7,405.96, 10,220.36 and 4,048.68 is: 5,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.96 : 10,220.36 = 4,048.68 : x
  2. Step 2: Convert to fraction form
    7,405.96/10,220.36 = 4,048.68/x
  3. Step 3: Cross multiply
    7,405.96x = 10,220.36 × 4,048.68
  4. Step 4: Simplify right side
    7,405.96x = 41,378,967.12
  5. Step 5: Solve for x
    x = 41,378,967.12/7,405.96
  6. Step 6: Final answer
    x = 5,587.25

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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.