Home / 7,331.36-10,119.14-4,189.40

Finding the Fourth Proportional to 7,331.36, 10,119.14 and 4,189.40

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Solution

The fourth proportional to 7,331.36, 10,119.14 and 4,189.40 is: 5,782.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.36 : 10,119.14 = 4,189.40 : x
  2. Step 2: Convert to fraction form
    7,331.36/10,119.14 = 4,189.40/x
  3. Step 3: Cross multiply
    7,331.36x = 10,119.14 × 4,189.40
  4. Step 4: Simplify right side
    7,331.36x = 42,393,125.12
  5. Step 5: Solve for x
    x = 42,393,125.12/7,331.36
  6. Step 6: Final answer
    x = 5,782.44

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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.