Home / 7,442.64-11,158.95-3,928.93

Finding the Fourth Proportional to 7,442.64, 11,158.95 and 3,928.93

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Solution

The fourth proportional to 7,442.64, 11,158.95 and 3,928.93 is: 5,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.64 : 11,158.95 = 3,928.93 : x
  2. Step 2: Convert to fraction form
    7,442.64/11,158.95 = 3,928.93/x
  3. Step 3: Cross multiply
    7,442.64x = 11,158.95 × 3,928.93
  4. Step 4: Simplify right side
    7,442.64x = 43,842,733.42
  5. Step 5: Solve for x
    x = 43,842,733.42/7,442.64
  6. Step 6: Final answer
    x = 5,890.75

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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.