Home / 2,869.12-3,959.58-1,610.30

Finding the Fourth Proportional to 2,869.12, 3,959.58 and 1,610.30

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Solution

The fourth proportional to 2,869.12, 3,959.58 and 1,610.30 is: 2,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.12 : 3,959.58 = 1,610.30 : x
  2. Step 2: Convert to fraction form
    2,869.12/3,959.58 = 1,610.30/x
  3. Step 3: Cross multiply
    2,869.12x = 3,959.58 × 1,610.30
  4. Step 4: Simplify right side
    2,869.12x = 6,376,111.67
  5. Step 5: Solve for x
    x = 6,376,111.67/2,869.12
  6. Step 6: Final answer
    x = 2,222.32

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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.