Home / 1,432.64-2,137.25-1,392.95

Finding the Fourth Proportional to 1,432.64, 2,137.25 and 1,392.95

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Solution

The fourth proportional to 1,432.64, 2,137.25 and 1,392.95 is: 2,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.64 : 2,137.25 = 1,392.95 : x
  2. Step 2: Convert to fraction form
    1,432.64/2,137.25 = 1,392.95/x
  3. Step 3: Cross multiply
    1,432.64x = 2,137.25 × 1,392.95
  4. Step 4: Simplify right side
    1,432.64x = 2,977,064.74
  5. Step 5: Solve for x
    x = 2,977,064.74/1,432.64
  6. Step 6: Final answer
    x = 2,078.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.