Home / 1,671.12-2,307.20-1,073.85

Finding the Fourth Proportional to 1,671.12, 2,307.20 and 1,073.85

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Solution

The fourth proportional to 1,671.12, 2,307.20 and 1,073.85 is: 1,482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.12 : 2,307.20 = 1,073.85 : x
  2. Step 2: Convert to fraction form
    1,671.12/2,307.20 = 1,073.85/x
  3. Step 3: Cross multiply
    1,671.12x = 2,307.20 × 1,073.85
  4. Step 4: Simplify right side
    1,671.12x = 2,477,586.72
  5. Step 5: Solve for x
    x = 2,477,586.72/1,671.12
  6. Step 6: Final answer
    x = 1,482.59

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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.