Home / 2,719.36-4,079.04-1,258.24

Finding the Fourth Proportional to 2,719.36, 4,079.04 and 1,258.24

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Solution

The fourth proportional to 2,719.36, 4,079.04 and 1,258.24 is: 1,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.36 : 4,079.04 = 1,258.24 : x
  2. Step 2: Convert to fraction form
    2,719.36/4,079.04 = 1,258.24/x
  3. Step 3: Cross multiply
    2,719.36x = 4,079.04 × 1,258.24
  4. Step 4: Simplify right side
    2,719.36x = 5,132,411.29
  5. Step 5: Solve for x
    x = 5,132,411.29/2,719.36
  6. Step 6: Final answer
    x = 1,887.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.