Home / 2,531.16-3,491.12-1,858.76

Finding the Fourth Proportional to 2,531.16, 3,491.12 and 1,858.76

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Solution

The fourth proportional to 2,531.16, 3,491.12 and 1,858.76 is: 2,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.16 : 3,491.12 = 1,858.76 : x
  2. Step 2: Convert to fraction form
    2,531.16/3,491.12 = 1,858.76/x
  3. Step 3: Cross multiply
    2,531.16x = 3,491.12 × 1,858.76
  4. Step 4: Simplify right side
    2,531.16x = 6,489,129.79
  5. Step 5: Solve for x
    x = 6,489,129.79/2,531.16
  6. Step 6: Final answer
    x = 2,563.70

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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.