Home / 1,753.05-2,419.20-1,007.07

Finding the Fourth Proportional to 1,753.05, 2,419.20 and 1,007.07

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Solution

The fourth proportional to 1,753.05, 2,419.20 and 1,007.07 is: 1,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.05 : 2,419.20 = 1,007.07 : x
  2. Step 2: Convert to fraction form
    1,753.05/2,419.20 = 1,007.07/x
  3. Step 3: Cross multiply
    1,753.05x = 2,419.20 × 1,007.07
  4. Step 4: Simplify right side
    1,753.05x = 2,436,303.74
  5. Step 5: Solve for x
    x = 2,436,303.74/1,753.05
  6. Step 6: Final answer
    x = 1,389.75

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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.