Home / 2,103.17-2,899.75-1,605.02

Finding the Fourth Proportional to 2,103.17, 2,899.75 and 1,605.02

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Solution

The fourth proportional to 2,103.17, 2,899.75 and 1,605.02 is: 2,212.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.17 : 2,899.75 = 1,605.02 : x
  2. Step 2: Convert to fraction form
    2,103.17/2,899.75 = 1,605.02/x
  3. Step 3: Cross multiply
    2,103.17x = 2,899.75 × 1,605.02
  4. Step 4: Simplify right side
    2,103.17x = 4,654,141.24
  5. Step 5: Solve for x
    x = 4,654,141.24/2,103.17
  6. Step 6: Final answer
    x = 2,212.92

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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.