Home / 7,420.16-11,131.60-2,490.32

Finding the Fourth Proportional to 7,420.16, 11,131.60 and 2,490.32

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Solution

The fourth proportional to 7,420.16, 11,131.60 and 2,490.32 is: 3,735.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.16 : 11,131.60 = 2,490.32 : x
  2. Step 2: Convert to fraction form
    7,420.16/11,131.60 = 2,490.32/x
  3. Step 3: Cross multiply
    7,420.16x = 11,131.60 × 2,490.32
  4. Step 4: Simplify right side
    7,420.16x = 27,721,246.11
  5. Step 5: Solve for x
    x = 27,721,246.11/7,420.16
  6. Step 6: Final answer
    x = 3,735.94

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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.