Home / 5,133.80-7,084.64-2,775.92

Finding the Fourth Proportional to 5,133.80, 7,084.64 and 2,775.92

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Solution

The fourth proportional to 5,133.80, 7,084.64 and 2,775.92 is: 3,830.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.80 : 7,084.64 = 2,775.92 : x
  2. Step 2: Convert to fraction form
    5,133.80/7,084.64 = 2,775.92/x
  3. Step 3: Cross multiply
    5,133.80x = 7,084.64 × 2,775.92
  4. Step 4: Simplify right side
    5,133.80x = 19,666,393.87
  5. Step 5: Solve for x
    x = 19,666,393.87/5,133.80
  6. Step 6: Final answer
    x = 3,830.77

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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.