Home / 2,929.80-4,043.14-1,603.46

Finding the Fourth Proportional to 2,929.80, 4,043.14 and 1,603.46

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Solution

The fourth proportional to 2,929.80, 4,043.14 and 1,603.46 is: 2,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.80 : 4,043.14 = 1,603.46 : x
  2. Step 2: Convert to fraction form
    2,929.80/4,043.14 = 1,603.46/x
  3. Step 3: Cross multiply
    2,929.80x = 4,043.14 × 1,603.46
  4. Step 4: Simplify right side
    2,929.80x = 6,483,013.26
  5. Step 5: Solve for x
    x = 6,483,013.26/2,929.80
  6. Step 6: Final answer
    x = 2,212.78

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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.