Home / 2,291.31-3,159.09-1,544.76

Finding the Fourth Proportional to 2,291.31, 3,159.09 and 1,544.76

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Solution

The fourth proportional to 2,291.31, 3,159.09 and 1,544.76 is: 2,129.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.31 : 3,159.09 = 1,544.76 : x
  2. Step 2: Convert to fraction form
    2,291.31/3,159.09 = 1,544.76/x
  3. Step 3: Cross multiply
    2,291.31x = 3,159.09 × 1,544.76
  4. Step 4: Simplify right side
    2,291.31x = 4,880,035.87
  5. Step 5: Solve for x
    x = 4,880,035.87/2,291.31
  6. Step 6: Final answer
    x = 2,129.80

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1.5x scale

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.