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Finding the Fourth Proportional to 2,900.55, 4,351.64 and 954.12

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Solution

The fourth proportional to 2,900.55, 4,351.64 and 954.12 is: 1,431.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.55 : 4,351.64 = 954.12 : x
  2. Step 2: Convert to fraction form
    2,900.55/4,351.64 = 954.12/x
  3. Step 3: Cross multiply
    2,900.55x = 4,351.64 × 954.12
  4. Step 4: Simplify right side
    2,900.55x = 4,151,986.76
  5. Step 5: Solve for x
    x = 4,151,986.76/2,900.55
  6. Step 6: Final answer
    x = 1,431.45

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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.