Home / 2,885.53-3,982.06-1,690.25

Finding the Fourth Proportional to 2,885.53, 3,982.06 and 1,690.25

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Solution

The fourth proportional to 2,885.53, 3,982.06 and 1,690.25 is: 2,332.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.53 : 3,982.06 = 1,690.25 : x
  2. Step 2: Convert to fraction form
    2,885.53/3,982.06 = 1,690.25/x
  3. Step 3: Cross multiply
    2,885.53x = 3,982.06 × 1,690.25
  4. Step 4: Simplify right side
    2,885.53x = 6,730,668.46
  5. Step 5: Solve for x
    x = 6,730,668.46/2,885.53
  6. Step 6: Final answer
    x = 2,332.56

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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.