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Finding the Fourth Proportional to 3,430.02, 5,147.00 and 1,455.50

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Solution

The fourth proportional to 3,430.02, 5,147.00 and 1,455.50 is: 2,184.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.02 : 5,147.00 = 1,455.50 : x
  2. Step 2: Convert to fraction form
    3,430.02/5,147.00 = 1,455.50/x
  3. Step 3: Cross multiply
    3,430.02x = 5,147.00 × 1,455.50
  4. Step 4: Simplify right side
    3,430.02x = 7,491,436.40
  5. Step 5: Solve for x
    x = 7,491,436.40/3,430.02
  6. Step 6: Final answer
    x = 2,184.08

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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.