Home / 2,390.88-3,299.36-1,343.01

Finding the Fourth Proportional to 2,390.88, 3,299.36 and 1,343.01

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Solution

The fourth proportional to 2,390.88, 3,299.36 and 1,343.01 is: 1,853.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.88 : 3,299.36 = 1,343.01 : x
  2. Step 2: Convert to fraction form
    2,390.88/3,299.36 = 1,343.01/x
  3. Step 3: Cross multiply
    2,390.88x = 3,299.36 × 1,343.01
  4. Step 4: Simplify right side
    2,390.88x = 4,431,066.76
  5. Step 5: Solve for x
    x = 4,431,066.76/2,390.88
  6. Step 6: Final answer
    x = 1,853.32

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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.