Home / 2,386.81-3,580.07-1,419.07

Finding the Fourth Proportional to 2,386.81, 3,580.07 and 1,419.07

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Solution

The fourth proportional to 2,386.81, 3,580.07 and 1,419.07 is: 2,128.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.81 : 3,580.07 = 1,419.07 : x
  2. Step 2: Convert to fraction form
    2,386.81/3,580.07 = 1,419.07/x
  3. Step 3: Cross multiply
    2,386.81x = 3,580.07 × 1,419.07
  4. Step 4: Simplify right side
    2,386.81x = 5,080,344.94
  5. Step 5: Solve for x
    x = 5,080,344.94/2,386.81
  6. Step 6: Final answer
    x = 2,128.51

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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.