Home / 1,335.15-2,007.05-1,328.67

Finding the Fourth Proportional to 1,335.15, 2,007.05 and 1,328.67

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Solution

The fourth proportional to 1,335.15, 2,007.05 and 1,328.67 is: 1,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.15 : 2,007.05 = 1,328.67 : x
  2. Step 2: Convert to fraction form
    1,335.15/2,007.05 = 1,328.67/x
  3. Step 3: Cross multiply
    1,335.15x = 2,007.05 × 1,328.67
  4. Step 4: Simplify right side
    1,335.15x = 2,666,700.48
  5. Step 5: Solve for x
    x = 2,666,700.48/1,335.15
  6. Step 6: Final answer
    x = 1,997.30

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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.