Home / 2,291.40-3,432.51-1,057.05

Finding the Fourth Proportional to 2,291.40, 3,432.51 and 1,057.05

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Solution

The fourth proportional to 2,291.40, 3,432.51 and 1,057.05 is: 1,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.40 : 3,432.51 = 1,057.05 : x
  2. Step 2: Convert to fraction form
    2,291.40/3,432.51 = 1,057.05/x
  3. Step 3: Cross multiply
    2,291.40x = 3,432.51 × 1,057.05
  4. Step 4: Simplify right side
    2,291.40x = 3,628,334.70
  5. Step 5: Solve for x
    x = 3,628,334.70/2,291.40
  6. Step 6: Final answer
    x = 1,583.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.