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Finding the Fourth Proportional to 692.01, 954.90 and 381.51

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Solution

The fourth proportional to 692.01, 954.90 and 381.51 is: 526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.01 : 954.90 = 381.51 : x
  2. Step 2: Convert to fraction form
    692.01/954.90 = 381.51/x
  3. Step 3: Cross multiply
    692.01x = 954.90 × 381.51
  4. Step 4: Simplify right side
    692.01x = 364,303.90
  5. Step 5: Solve for x
    x = 364,303.90/692.01
  6. Step 6: Final answer
    x = 526.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.