Home / 5,316.86-7,338.98-3,428.51

Finding the Fourth Proportional to 5,316.86, 7,338.98 and 3,428.51

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Solution

The fourth proportional to 5,316.86, 7,338.98 and 3,428.51 is: 4,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.86 : 7,338.98 = 3,428.51 : x
  2. Step 2: Convert to fraction form
    5,316.86/7,338.98 = 3,428.51/x
  3. Step 3: Cross multiply
    5,316.86x = 7,338.98 × 3,428.51
  4. Step 4: Simplify right side
    5,316.86x = 25,161,738.20
  5. Step 5: Solve for x
    x = 25,161,738.20/5,316.86
  6. Step 6: Final answer
    x = 4,732.44

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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.