Home / 1,821.10-2,513.13-1,035.16

Finding the Fourth Proportional to 1,821.10, 2,513.13 and 1,035.16

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Solution

The fourth proportional to 1,821.10, 2,513.13 and 1,035.16 is: 1,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.10 : 2,513.13 = 1,035.16 : x
  2. Step 2: Convert to fraction form
    1,821.10/2,513.13 = 1,035.16/x
  3. Step 3: Cross multiply
    1,821.10x = 2,513.13 × 1,035.16
  4. Step 4: Simplify right side
    1,821.10x = 2,601,491.65
  5. Step 5: Solve for x
    x = 2,601,491.65/1,821.10
  6. Step 6: Final answer
    x = 1,428.53

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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.