Home / 7,119.90-10,679.85-1,925.64

Finding the Fourth Proportional to 7,119.90, 10,679.85 and 1,925.64

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Solution

The fourth proportional to 7,119.90, 10,679.85 and 1,925.64 is: 2,888.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.90 : 10,679.85 = 1,925.64 : x
  2. Step 2: Convert to fraction form
    7,119.90/10,679.85 = 1,925.64/x
  3. Step 3: Cross multiply
    7,119.90x = 10,679.85 × 1,925.64
  4. Step 4: Simplify right side
    7,119.90x = 20,565,546.35
  5. Step 5: Solve for x
    x = 20,565,546.35/7,119.90
  6. Step 6: Final answer
    x = 2,888.46

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Similar ratio
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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.