Home / 1,675.92-2,509.18-1,263.76

Finding the Fourth Proportional to 1,675.92, 2,509.18 and 1,263.76

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Solution

The fourth proportional to 1,675.92, 2,509.18 and 1,263.76 is: 1,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.92 : 2,509.18 = 1,263.76 : x
  2. Step 2: Convert to fraction form
    1,675.92/2,509.18 = 1,263.76/x
  3. Step 3: Cross multiply
    1,675.92x = 2,509.18 × 1,263.76
  4. Step 4: Simplify right side
    1,675.92x = 3,171,001.32
  5. Step 5: Solve for x
    x = 3,171,001.32/1,675.92
  6. Step 6: Final answer
    x = 1,892.10

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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.