Home / 1,534.08-2,300.76-438.42

Finding the Fourth Proportional to 1,534.08, 2,300.76 and 438.42

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Solution

The fourth proportional to 1,534.08, 2,300.76 and 438.42 is: 657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.08 : 2,300.76 = 438.42 : x
  2. Step 2: Convert to fraction form
    1,534.08/2,300.76 = 438.42/x
  3. Step 3: Cross multiply
    1,534.08x = 2,300.76 × 438.42
  4. Step 4: Simplify right side
    1,534.08x = 1,008,699.20
  5. Step 5: Solve for x
    x = 1,008,699.20/1,534.08
  6. Step 6: Final answer
    x = 657.53

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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.