Home / 1,025.56-1,538.29-716.50

Finding the Fourth Proportional to 1,025.56, 1,538.29 and 716.50

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Solution

The fourth proportional to 1,025.56, 1,538.29 and 716.50 is: 1,074.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.56 : 1,538.29 = 716.50 : x
  2. Step 2: Convert to fraction form
    1,025.56/1,538.29 = 716.50/x
  3. Step 3: Cross multiply
    1,025.56x = 1,538.29 × 716.50
  4. Step 4: Simplify right side
    1,025.56x = 1,102,184.79
  5. Step 5: Solve for x
    x = 1,102,184.79/1,025.56
  6. Step 6: Final answer
    x = 1,074.72

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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.