Home / 1,943.13-2,681.40-1,604.13

Finding the Fourth Proportional to 1,943.13, 2,681.40 and 1,604.13

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Solution

The fourth proportional to 1,943.13, 2,681.40 and 1,604.13 is: 2,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.13 : 2,681.40 = 1,604.13 : x
  2. Step 2: Convert to fraction form
    1,943.13/2,681.40 = 1,604.13/x
  3. Step 3: Cross multiply
    1,943.13x = 2,681.40 × 1,604.13
  4. Step 4: Simplify right side
    1,943.13x = 4,301,314.18
  5. Step 5: Solve for x
    x = 4,301,314.18/1,943.13
  6. Step 6: Final answer
    x = 2,213.60

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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.