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Finding the Fourth Proportional to 4,350.40, 6,526.40 and 2,153.60

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Solution

The fourth proportional to 4,350.40, 6,526.40 and 2,153.60 is: 3,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,350.40 : 6,526.40 = 2,153.60 : x
  2. Step 2: Convert to fraction form
    4,350.40/6,526.40 = 2,153.60/x
  3. Step 3: Cross multiply
    4,350.40x = 6,526.40 × 2,153.60
  4. Step 4: Simplify right side
    4,350.40x = 14,055,255.04
  5. Step 5: Solve for x
    x = 14,055,255.04/4,350.40
  6. Step 6: Final answer
    x = 3,230.80

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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.