Home / 3,103.17-4,282.45-1,686.94

Finding the Fourth Proportional to 3,103.17, 4,282.45 and 1,686.94

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Solution

The fourth proportional to 3,103.17, 4,282.45 and 1,686.94 is: 2,328.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.17 : 4,282.45 = 1,686.94 : x
  2. Step 2: Convert to fraction form
    3,103.17/4,282.45 = 1,686.94/x
  3. Step 3: Cross multiply
    3,103.17x = 4,282.45 × 1,686.94
  4. Step 4: Simplify right side
    3,103.17x = 7,224,221.28
  5. Step 5: Solve for x
    x = 7,224,221.28/3,103.17
  6. Step 6: Final answer
    x = 2,328.01

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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.