Home / 3,055.10-4,215.96-1,729.13

Finding the Fourth Proportional to 3,055.10, 4,215.96 and 1,729.13

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Solution

The fourth proportional to 3,055.10, 4,215.96 and 1,729.13 is: 2,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.10 : 4,215.96 = 1,729.13 : x
  2. Step 2: Convert to fraction form
    3,055.10/4,215.96 = 1,729.13/x
  3. Step 3: Cross multiply
    3,055.10x = 4,215.96 × 1,729.13
  4. Step 4: Simplify right side
    3,055.10x = 7,289,921.84
  5. Step 5: Solve for x
    x = 7,289,921.84/3,055.10
  6. Step 6: Final answer
    x = 2,386.15

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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.