Home / 5,130.33-7,079.86-2,772.48

Finding the Fourth Proportional to 5,130.33, 7,079.86 and 2,772.48

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Solution

The fourth proportional to 5,130.33, 7,079.86 and 2,772.48 is: 3,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.33 : 7,079.86 = 2,772.48 : x
  2. Step 2: Convert to fraction form
    5,130.33/7,079.86 = 2,772.48/x
  3. Step 3: Cross multiply
    5,130.33x = 7,079.86 × 2,772.48
  4. Step 4: Simplify right side
    5,130.33x = 19,628,740.53
  5. Step 5: Solve for x
    x = 19,628,740.53/5,130.33
  6. Step 6: Final answer
    x = 3,826.02

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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.