Home / 5,485.48-7,569.91-3,127.57

Finding the Fourth Proportional to 5,485.48, 7,569.91 and 3,127.57

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Solution

The fourth proportional to 5,485.48, 7,569.91 and 3,127.57 is: 4,316.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.48 : 7,569.91 = 3,127.57 : x
  2. Step 2: Convert to fraction form
    5,485.48/7,569.91 = 3,127.57/x
  3. Step 3: Cross multiply
    5,485.48x = 7,569.91 × 3,127.57
  4. Step 4: Simplify right side
    5,485.48x = 23,675,396.68
  5. Step 5: Solve for x
    x = 23,675,396.68/5,485.48
  6. Step 6: Final answer
    x = 4,316.01

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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.