Home / 1,692.48-2,334.08-1,431.04

Finding the Fourth Proportional to 1,692.48, 2,334.08 and 1,431.04

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Solution

The fourth proportional to 1,692.48, 2,334.08 and 1,431.04 is: 1,973.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.48 : 2,334.08 = 1,431.04 : x
  2. Step 2: Convert to fraction form
    1,692.48/2,334.08 = 1,431.04/x
  3. Step 3: Cross multiply
    1,692.48x = 2,334.08 × 1,431.04
  4. Step 4: Simplify right side
    1,692.48x = 3,340,161.84
  5. Step 5: Solve for x
    x = 3,340,161.84/1,692.48
  6. Step 6: Final answer
    x = 1,973.53

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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.