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Finding the Fourth Proportional to 2,709.84, 4,064.76 and 1,692.24

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Solution

The fourth proportional to 2,709.84, 4,064.76 and 1,692.24 is: 2,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.84 : 4,064.76 = 1,692.24 : x
  2. Step 2: Convert to fraction form
    2,709.84/4,064.76 = 1,692.24/x
  3. Step 3: Cross multiply
    2,709.84x = 4,064.76 × 1,692.24
  4. Step 4: Simplify right side
    2,709.84x = 6,878,549.46
  5. Step 5: Solve for x
    x = 6,878,549.46/2,709.84
  6. Step 6: Final answer
    x = 2,538.36

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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.