Home / 4,927.44-7,390.32-1,640.16

Finding the Fourth Proportional to 4,927.44, 7,390.32 and 1,640.16

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Solution

The fourth proportional to 4,927.44, 7,390.32 and 1,640.16 is: 2,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.44 : 7,390.32 = 1,640.16 : x
  2. Step 2: Convert to fraction form
    4,927.44/7,390.32 = 1,640.16/x
  3. Step 3: Cross multiply
    4,927.44x = 7,390.32 × 1,640.16
  4. Step 4: Simplify right side
    4,927.44x = 12,121,307.25
  5. Step 5: Solve for x
    x = 12,121,307.25/4,927.44
  6. Step 6: Final answer
    x = 2,459.96

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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.