Home / 2,811.58-3,881.30-2,545.04

Finding the Fourth Proportional to 2,811.58, 3,881.30 and 2,545.04

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Solution

The fourth proportional to 2,811.58, 3,881.30 and 2,545.04 is: 3,513.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.58 : 3,881.30 = 2,545.04 : x
  2. Step 2: Convert to fraction form
    2,811.58/3,881.30 = 2,545.04/x
  3. Step 3: Cross multiply
    2,811.58x = 3,881.30 × 2,545.04
  4. Step 4: Simplify right side
    2,811.58x = 9,878,063.75
  5. Step 5: Solve for x
    x = 9,878,063.75/2,811.58
  6. Step 6: Final answer
    x = 3,513.35

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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.