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Finding the Fourth Proportional to 1,527.16, 2,289.12 and 1,039

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Solution

The fourth proportional to 1,527.16, 2,289.12 and 1,039 is: 1,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527.16 : 2,289.12 = 1,039 : x
  2. Step 2: Convert to fraction form
    1,527.16/2,289.12 = 1,039/x
  3. Step 3: Cross multiply
    1,527.16x = 2,289.12 × 1,039
  4. Step 4: Simplify right side
    1,527.16x = 2,378,395.68
  5. Step 5: Solve for x
    x = 2,378,395.68/1,527.16
  6. Step 6: Final answer
    x = 1,557.40

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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.