Home / 2,815.68-3,885.66-1,637.04

Finding the Fourth Proportional to 2,815.68, 3,885.66 and 1,637.04

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Solution

The fourth proportional to 2,815.68, 3,885.66 and 1,637.04 is: 2,259.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.68 : 3,885.66 = 1,637.04 : x
  2. Step 2: Convert to fraction form
    2,815.68/3,885.66 = 1,637.04/x
  3. Step 3: Cross multiply
    2,815.68x = 3,885.66 × 1,637.04
  4. Step 4: Simplify right side
    2,815.68x = 6,360,980.85
  5. Step 5: Solve for x
    x = 6,360,980.85/2,815.68
  6. Step 6: Final answer
    x = 2,259.13

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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.