Home / 1,432.98-2,137.67-1,333.55

Finding the Fourth Proportional to 1,432.98, 2,137.67 and 1,333.55

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Solution

The fourth proportional to 1,432.98, 2,137.67 and 1,333.55 is: 1,989.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.98 : 2,137.67 = 1,333.55 : x
  2. Step 2: Convert to fraction form
    1,432.98/2,137.67 = 1,333.55/x
  3. Step 3: Cross multiply
    1,432.98x = 2,137.67 × 1,333.55
  4. Step 4: Simplify right side
    1,432.98x = 2,850,672.47
  5. Step 5: Solve for x
    x = 2,850,672.47/1,432.98
  6. Step 6: Final answer
    x = 1,989.33

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1.5x scale

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.