Home / 1,821.10-2,513.16-1,035.13

Finding the Fourth Proportional to 1,821.10, 2,513.16 and 1,035.13

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Solution

The fourth proportional to 1,821.10, 2,513.16 and 1,035.13 is: 1,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.10 : 2,513.16 = 1,035.13 : x
  2. Step 2: Convert to fraction form
    1,821.10/2,513.16 = 1,035.13/x
  3. Step 3: Cross multiply
    1,821.10x = 2,513.16 × 1,035.13
  4. Step 4: Simplify right side
    1,821.10x = 2,601,447.31
  5. Step 5: Solve for x
    x = 2,601,447.31/1,821.10
  6. Step 6: Final answer
    x = 1,428.50

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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.