Home / 7,390.49-11,079.96-3,690.86

Finding the Fourth Proportional to 7,390.49, 11,079.96 and 3,690.86

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Solution

The fourth proportional to 7,390.49, 11,079.96 and 3,690.86 is: 5,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.49 : 11,079.96 = 3,690.86 : x
  2. Step 2: Convert to fraction form
    7,390.49/11,079.96 = 3,690.86/x
  3. Step 3: Cross multiply
    7,390.49x = 11,079.96 × 3,690.86
  4. Step 4: Simplify right side
    7,390.49x = 40,894,525.77
  5. Step 5: Solve for x
    x = 40,894,525.77/7,390.49
  6. Step 6: Final answer
    x = 5,533.40

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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.