Home / 2,330.41-3,215.61-1,386.19

Finding the Fourth Proportional to 2,330.41, 3,215.61 and 1,386.19

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Solution

The fourth proportional to 2,330.41, 3,215.61 and 1,386.19 is: 1,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.41 : 3,215.61 = 1,386.19 : x
  2. Step 2: Convert to fraction form
    2,330.41/3,215.61 = 1,386.19/x
  3. Step 3: Cross multiply
    2,330.41x = 3,215.61 × 1,386.19
  4. Step 4: Simplify right side
    2,330.41x = 4,457,430.35
  5. Step 5: Solve for x
    x = 4,457,430.35/2,330.41
  6. Step 6: Final answer
    x = 1,912.72

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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.