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Finding the Fourth Proportional to 941.85, 1,298.57 and 692.37

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Solution

The fourth proportional to 941.85, 1,298.57 and 692.37 is: 954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.85 : 1,298.57 = 692.37 : x
  2. Step 2: Convert to fraction form
    941.85/1,298.57 = 692.37/x
  3. Step 3: Cross multiply
    941.85x = 1,298.57 × 692.37
  4. Step 4: Simplify right side
    941.85x = 899,087.45
  5. Step 5: Solve for x
    x = 899,087.45/941.85
  6. Step 6: Final answer
    x = 954.60

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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.