Home / 7,405.21-10,220.14-4,261.40

Finding the Fourth Proportional to 7,405.21, 10,220.14 and 4,261.40

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Solution

The fourth proportional to 7,405.21, 10,220.14 and 4,261.40 is: 5,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.21 : 10,220.14 = 4,261.40 : x
  2. Step 2: Convert to fraction form
    7,405.21/10,220.14 = 4,261.40/x
  3. Step 3: Cross multiply
    7,405.21x = 10,220.14 × 4,261.40
  4. Step 4: Simplify right side
    7,405.21x = 43,552,104.60
  5. Step 5: Solve for x
    x = 43,552,104.60/7,405.21
  6. Step 6: Final answer
    x = 5,881.28

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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.