Home / 1,394.55-2,088.86-1,298.39

Finding the Fourth Proportional to 1,394.55, 2,088.86 and 1,298.39

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Solution

The fourth proportional to 1,394.55, 2,088.86 and 1,298.39 is: 1,944.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.55 : 2,088.86 = 1,298.39 : x
  2. Step 2: Convert to fraction form
    1,394.55/2,088.86 = 1,298.39/x
  3. Step 3: Cross multiply
    1,394.55x = 2,088.86 × 1,298.39
  4. Step 4: Simplify right side
    1,394.55x = 2,712,138.00
  5. Step 5: Solve for x
    x = 2,712,138.00/1,394.55
  6. Step 6: Final answer
    x = 1,944.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.