Home / 4,692.38-7,038.57-1,918.57

Finding the Fourth Proportional to 4,692.38, 7,038.57 and 1,918.57

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Solution

The fourth proportional to 4,692.38, 7,038.57 and 1,918.57 is: 2,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,692.38 : 7,038.57 = 1,918.57 : x
  2. Step 2: Convert to fraction form
    4,692.38/7,038.57 = 1,918.57/x
  3. Step 3: Cross multiply
    4,692.38x = 7,038.57 × 1,918.57
  4. Step 4: Simplify right side
    4,692.38x = 13,503,989.24
  5. Step 5: Solve for x
    x = 13,503,989.24/4,692.38
  6. Step 6: Final answer
    x = 2,877.86

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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.