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Finding the Fourth Proportional to 3,168.55, 4,752.46 and 977.09

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Solution

The fourth proportional to 3,168.55, 4,752.46 and 977.09 is: 1,465.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.55 : 4,752.46 = 977.09 : x
  2. Step 2: Convert to fraction form
    3,168.55/4,752.46 = 977.09/x
  3. Step 3: Cross multiply
    3,168.55x = 4,752.46 × 977.09
  4. Step 4: Simplify right side
    3,168.55x = 4,643,576.26
  5. Step 5: Solve for x
    x = 4,643,576.26/3,168.55
  6. Step 6: Final answer
    x = 1,465.52

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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.