Home / 1,482.21-2,045.60-1,108.55

Finding the Fourth Proportional to 1,482.21, 2,045.60 and 1,108.55

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Solution

The fourth proportional to 1,482.21, 2,045.60 and 1,108.55 is: 1,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.21 : 2,045.60 = 1,108.55 : x
  2. Step 2: Convert to fraction form
    1,482.21/2,045.60 = 1,108.55/x
  3. Step 3: Cross multiply
    1,482.21x = 2,045.60 × 1,108.55
  4. Step 4: Simplify right side
    1,482.21x = 2,267,634.11
  5. Step 5: Solve for x
    x = 2,267,634.11/1,482.21
  6. Step 6: Final answer
    x = 1,529.90

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1.5x scale

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.