Home / 7,119.16-10,678.75-1,925.03

Finding the Fourth Proportional to 7,119.16, 10,678.75 and 1,925.03

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Solution

The fourth proportional to 7,119.16, 10,678.75 and 1,925.03 is: 2,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.16 : 10,678.75 = 1,925.03 : x
  2. Step 2: Convert to fraction form
    7,119.16/10,678.75 = 1,925.03/x
  3. Step 3: Cross multiply
    7,119.16x = 10,678.75 × 1,925.03
  4. Step 4: Simplify right side
    7,119.16x = 20,556,936.00
  5. Step 5: Solve for x
    x = 20,556,936.00/7,119.16
  6. Step 6: Final answer
    x = 2,887.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.