Home / 1,538.20-2,133.60-1,482.86

Finding the Fourth Proportional to 1,538.20, 2,133.60 and 1,482.86

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Solution

The fourth proportional to 1,538.20, 2,133.60 and 1,482.86 is: 2,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.20 : 2,133.60 = 1,482.86 : x
  2. Step 2: Convert to fraction form
    1,538.20/2,133.60 = 1,482.86/x
  3. Step 3: Cross multiply
    1,538.20x = 2,133.60 × 1,482.86
  4. Step 4: Simplify right side
    1,538.20x = 3,163,830.10
  5. Step 5: Solve for x
    x = 3,163,830.10/1,538.20
  6. Step 6: Final answer
    x = 2,056.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.