Home / 1,585.06-2,186.49-1,118.50

Finding the Fourth Proportional to 1,585.06, 2,186.49 and 1,118.50

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Solution

The fourth proportional to 1,585.06, 2,186.49 and 1,118.50 is: 1,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.06 : 2,186.49 = 1,118.50 : x
  2. Step 2: Convert to fraction form
    1,585.06/2,186.49 = 1,118.50/x
  3. Step 3: Cross multiply
    1,585.06x = 2,186.49 × 1,118.50
  4. Step 4: Simplify right side
    1,585.06x = 2,445,589.07
  5. Step 5: Solve for x
    x = 2,445,589.07/1,585.06
  6. Step 6: Final answer
    x = 1,542.90

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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.