Home / 2,764.53-3,815.61-1,646.12

Finding the Fourth Proportional to 2,764.53, 3,815.61 and 1,646.12

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Solution

The fourth proportional to 2,764.53, 3,815.61 and 1,646.12 is: 2,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.53 : 3,815.61 = 1,646.12 : x
  2. Step 2: Convert to fraction form
    2,764.53/3,815.61 = 1,646.12/x
  3. Step 3: Cross multiply
    2,764.53x = 3,815.61 × 1,646.12
  4. Step 4: Simplify right side
    2,764.53x = 6,280,955.30
  5. Step 5: Solve for x
    x = 6,280,955.30/2,764.53
  6. Step 6: Final answer
    x = 2,271.98

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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.