Home / 5,343.36-8,015.64-2,421.28

Finding the Fourth Proportional to 5,343.36, 8,015.64 and 2,421.28

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Solution

The fourth proportional to 5,343.36, 8,015.64 and 2,421.28 is: 3,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.36 : 8,015.64 = 2,421.28 : x
  2. Step 2: Convert to fraction form
    5,343.36/8,015.64 = 2,421.28/x
  3. Step 3: Cross multiply
    5,343.36x = 8,015.64 × 2,421.28
  4. Step 4: Simplify right side
    5,343.36x = 19,408,108.82
  5. Step 5: Solve for x
    x = 19,408,108.82/5,343.36
  6. Step 6: Final answer
    x = 3,632.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.