Home / 1,018.12-1,527.60-608.08

Finding the Fourth Proportional to 1,018.12, 1,527.60 and 608.08

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Solution

The fourth proportional to 1,018.12, 1,527.60 and 608.08 is: 912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018.12 : 1,527.60 = 608.08 : x
  2. Step 2: Convert to fraction form
    1,018.12/1,527.60 = 608.08/x
  3. Step 3: Cross multiply
    1,018.12x = 1,527.60 × 608.08
  4. Step 4: Simplify right side
    1,018.12x = 928,903.01
  5. Step 5: Solve for x
    x = 928,903.01/1,018.12
  6. Step 6: Final answer
    x = 912.37

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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.