Home / 3,154.55-4,353.72-1,810.58

Finding the Fourth Proportional to 3,154.55, 4,353.72 and 1,810.58

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Solution

The fourth proportional to 3,154.55, 4,353.72 and 1,810.58 is: 2,498.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.55 : 4,353.72 = 1,810.58 : x
  2. Step 2: Convert to fraction form
    3,154.55/4,353.72 = 1,810.58/x
  3. Step 3: Cross multiply
    3,154.55x = 4,353.72 × 1,810.58
  4. Step 4: Simplify right side
    3,154.55x = 7,882,758.36
  5. Step 5: Solve for x
    x = 7,882,758.36/3,154.55
  6. Step 6: Final answer
    x = 2,498.85

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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.