Home / 2,397.97-3,309.20-1,403.06

Finding the Fourth Proportional to 2,397.97, 3,309.20 and 1,403.06

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Solution

The fourth proportional to 2,397.97, 3,309.20 and 1,403.06 is: 1,936.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.97 : 3,309.20 = 1,403.06 : x
  2. Step 2: Convert to fraction form
    2,397.97/3,309.20 = 1,403.06/x
  3. Step 3: Cross multiply
    2,397.97x = 3,309.20 × 1,403.06
  4. Step 4: Simplify right side
    2,397.97x = 4,643,009.71
  5. Step 5: Solve for x
    x = 4,643,009.71/2,397.97
  6. Step 6: Final answer
    x = 1,936.22

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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.