Home / 1,126.40-1,692.36-1,064.23

Finding the Fourth Proportional to 1,126.40, 1,692.36 and 1,064.23

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Solution

The fourth proportional to 1,126.40, 1,692.36 and 1,064.23 is: 1,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.40 : 1,692.36 = 1,064.23 : x
  2. Step 2: Convert to fraction form
    1,126.40/1,692.36 = 1,064.23/x
  3. Step 3: Cross multiply
    1,126.40x = 1,692.36 × 1,064.23
  4. Step 4: Simplify right side
    1,126.40x = 1,801,056.05
  5. Step 5: Solve for x
    x = 1,801,056.05/1,126.40
  6. Step 6: Final answer
    x = 1,598.96

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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.