Home / 3,121.29-4,303.28-2,404.28

Finding the Fourth Proportional to 3,121.29, 4,303.28 and 2,404.28

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Solution

The fourth proportional to 3,121.29, 4,303.28 and 2,404.28 is: 3,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.29 : 4,303.28 = 2,404.28 : x
  2. Step 2: Convert to fraction form
    3,121.29/4,303.28 = 2,404.28/x
  3. Step 3: Cross multiply
    3,121.29x = 4,303.28 × 2,404.28
  4. Step 4: Simplify right side
    3,121.29x = 10,346,256.50
  5. Step 5: Solve for x
    x = 10,346,256.50/3,121.29
  6. Step 6: Final answer
    x = 3,314.74

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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.