Home / 1,692.32-2,333.18-1,242.76

Finding the Fourth Proportional to 1,692.32, 2,333.18 and 1,242.76

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Solution

The fourth proportional to 1,692.32, 2,333.18 and 1,242.76 is: 1,713.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.32 : 2,333.18 = 1,242.76 : x
  2. Step 2: Convert to fraction form
    1,692.32/2,333.18 = 1,242.76/x
  3. Step 3: Cross multiply
    1,692.32x = 2,333.18 × 1,242.76
  4. Step 4: Simplify right side
    1,692.32x = 2,899,582.78
  5. Step 5: Solve for x
    x = 2,899,582.78/1,692.32
  6. Step 6: Final answer
    x = 1,713.38

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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.