Home / 7,189.16-9,921.03-4,045.34

Finding the Fourth Proportional to 7,189.16, 9,921.03 and 4,045.34

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Solution

The fourth proportional to 7,189.16, 9,921.03 and 4,045.34 is: 5,582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.16 : 9,921.03 = 4,045.34 : x
  2. Step 2: Convert to fraction form
    7,189.16/9,921.03 = 4,045.34/x
  3. Step 3: Cross multiply
    7,189.16x = 9,921.03 × 4,045.34
  4. Step 4: Simplify right side
    7,189.16x = 40,133,889.90
  5. Step 5: Solve for x
    x = 40,133,889.90/7,189.16
  6. Step 6: Final answer
    x = 5,582.56

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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.