Home / 1,339.85-1,846.63-1,130.57

Finding the Fourth Proportional to 1,339.85, 1,846.63 and 1,130.57

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Solution

The fourth proportional to 1,339.85, 1,846.63 and 1,130.57 is: 1,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.85 : 1,846.63 = 1,130.57 : x
  2. Step 2: Convert to fraction form
    1,339.85/1,846.63 = 1,130.57/x
  3. Step 3: Cross multiply
    1,339.85x = 1,846.63 × 1,130.57
  4. Step 4: Simplify right side
    1,339.85x = 2,087,743.58
  5. Step 5: Solve for x
    x = 2,087,743.58/1,339.85
  6. Step 6: Final answer
    x = 1,558.19

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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.