Home / 2,210.65-3,316.73-1,387.96

Finding the Fourth Proportional to 2,210.65, 3,316.73 and 1,387.96

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Solution

The fourth proportional to 2,210.65, 3,316.73 and 1,387.96 is: 2,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.65 : 3,316.73 = 1,387.96 : x
  2. Step 2: Convert to fraction form
    2,210.65/3,316.73 = 1,387.96/x
  3. Step 3: Cross multiply
    2,210.65x = 3,316.73 × 1,387.96
  4. Step 4: Simplify right side
    2,210.65x = 4,603,473.34
  5. Step 5: Solve for x
    x = 4,603,473.34/2,210.65
  6. Step 6: Final answer
    x = 2,082.41

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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.