Home / 1,692.60-2,335.76-984.58

Finding the Fourth Proportional to 1,692.60, 2,335.76 and 984.58

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Solution

The fourth proportional to 1,692.60, 2,335.76 and 984.58 is: 1,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.60 : 2,335.76 = 984.58 : x
  2. Step 2: Convert to fraction form
    1,692.60/2,335.76 = 984.58/x
  3. Step 3: Cross multiply
    1,692.60x = 2,335.76 × 984.58
  4. Step 4: Simplify right side
    1,692.60x = 2,299,742.58
  5. Step 5: Solve for x
    x = 2,299,742.58/1,692.60
  6. Step 6: Final answer
    x = 1,358.70

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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.