Home / 1,357.89-2,037.15-433.51

Finding the Fourth Proportional to 1,357.89, 2,037.15 and 433.51

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Solution

The fourth proportional to 1,357.89, 2,037.15 and 433.51 is: 650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.89 : 2,037.15 = 433.51 : x
  2. Step 2: Convert to fraction form
    1,357.89/2,037.15 = 433.51/x
  3. Step 3: Cross multiply
    1,357.89x = 2,037.15 × 433.51
  4. Step 4: Simplify right side
    1,357.89x = 883,122.73
  5. Step 5: Solve for x
    x = 883,122.73/1,357.89
  6. Step 6: Final answer
    x = 650.36

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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.