Home / 5,485.68-7,569.18-3,127.76

Finding the Fourth Proportional to 5,485.68, 7,569.18 and 3,127.76

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Solution

The fourth proportional to 5,485.68, 7,569.18 and 3,127.76 is: 4,315.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.68 : 7,569.18 = 3,127.76 : x
  2. Step 2: Convert to fraction form
    5,485.68/7,569.18 = 3,127.76/x
  3. Step 3: Cross multiply
    5,485.68x = 7,569.18 × 3,127.76
  4. Step 4: Simplify right side
    5,485.68x = 23,674,578.44
  5. Step 5: Solve for x
    x = 23,674,578.44/5,485.68
  6. Step 6: Final answer
    x = 4,315.71

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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.