Home / 1,692.02-2,533.86-1,397.72

Finding the Fourth Proportional to 1,692.02, 2,533.86 and 1,397.72

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Solution

The fourth proportional to 1,692.02, 2,533.86 and 1,397.72 is: 2,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.02 : 2,533.86 = 1,397.72 : x
  2. Step 2: Convert to fraction form
    1,692.02/2,533.86 = 1,397.72/x
  3. Step 3: Cross multiply
    1,692.02x = 2,533.86 × 1,397.72
  4. Step 4: Simplify right side
    1,692.02x = 3,541,614.13
  5. Step 5: Solve for x
    x = 3,541,614.13/1,692.02
  6. Step 6: Final answer
    x = 2,093.13

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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.