Home / 1,528.67-2,293.38-433.01

Finding the Fourth Proportional to 1,528.67, 2,293.38 and 433.01

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Solution

The fourth proportional to 1,528.67, 2,293.38 and 433.01 is: 649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.67 : 2,293.38 = 433.01 : x
  2. Step 2: Convert to fraction form
    1,528.67/2,293.38 = 433.01/x
  3. Step 3: Cross multiply
    1,528.67x = 2,293.38 × 433.01
  4. Step 4: Simplify right side
    1,528.67x = 993,062.21
  5. Step 5: Solve for x
    x = 993,062.21/1,528.67
  6. Step 6: Final answer
    x = 649.62

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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.