Home / 1,130.20-1,559.68-756.59

Finding the Fourth Proportional to 1,130.20, 1,559.68 and 756.59

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Solution

The fourth proportional to 1,130.20, 1,559.68 and 756.59 is: 1,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.20 : 1,559.68 = 756.59 : x
  2. Step 2: Convert to fraction form
    1,130.20/1,559.68 = 756.59/x
  3. Step 3: Cross multiply
    1,130.20x = 1,559.68 × 756.59
  4. Step 4: Simplify right side
    1,130.20x = 1,180,039.50
  5. Step 5: Solve for x
    x = 1,180,039.50/1,130.20
  6. Step 6: Final answer
    x = 1,044.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.