Home / 1,535.11-2,303.48-669.49

Finding the Fourth Proportional to 1,535.11, 2,303.48 and 669.49

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Solution

The fourth proportional to 1,535.11, 2,303.48 and 669.49 is: 1,004.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.11 : 2,303.48 = 669.49 : x
  2. Step 2: Convert to fraction form
    1,535.11/2,303.48 = 669.49/x
  3. Step 3: Cross multiply
    1,535.11x = 2,303.48 × 669.49
  4. Step 4: Simplify right side
    1,535.11x = 1,542,156.83
  5. Step 5: Solve for x
    x = 1,542,156.83/1,535.11
  6. Step 6: Final answer
    x = 1,004.59

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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.