Home / 7,420.34-11,130.58-2,490.06

Finding the Fourth Proportional to 7,420.34, 11,130.58 and 2,490.06

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Solution

The fourth proportional to 7,420.34, 11,130.58 and 2,490.06 is: 3,735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.34 : 11,130.58 = 2,490.06 : x
  2. Step 2: Convert to fraction form
    7,420.34/11,130.58 = 2,490.06/x
  3. Step 3: Cross multiply
    7,420.34x = 11,130.58 × 2,490.06
  4. Step 4: Simplify right side
    7,420.34x = 27,715,812.03
  5. Step 5: Solve for x
    x = 27,715,812.03/7,420.34
  6. Step 6: Final answer
    x = 3,735.11

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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.