Home / 1,534.10-2,300.70-438.50

Finding the Fourth Proportional to 1,534.10, 2,300.70 and 438.50

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Solution

The fourth proportional to 1,534.10, 2,300.70 and 438.50 is: 657.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.10 : 2,300.70 = 438.50 : x
  2. Step 2: Convert to fraction form
    1,534.10/2,300.70 = 438.50/x
  3. Step 3: Cross multiply
    1,534.10x = 2,300.70 × 438.50
  4. Step 4: Simplify right side
    1,534.10x = 1,008,856.95
  5. Step 5: Solve for x
    x = 1,008,856.95/1,534.10
  6. Step 6: Final answer
    x = 657.62

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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.