Home / 1,358.12-2,036.42-433.51

Finding the Fourth Proportional to 1,358.12, 2,036.42 and 433.51

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Solution

The fourth proportional to 1,358.12, 2,036.42 and 433.51 is: 650.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.12 : 2,036.42 = 433.51 : x
  2. Step 2: Convert to fraction form
    1,358.12/2,036.42 = 433.51/x
  3. Step 3: Cross multiply
    1,358.12x = 2,036.42 × 433.51
  4. Step 4: Simplify right side
    1,358.12x = 882,808.43
  5. Step 5: Solve for x
    x = 882,808.43/1,358.12
  6. Step 6: Final answer
    x = 650.02

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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.