Home / 1,400.18-2,100.87-534.29

Finding the Fourth Proportional to 1,400.18, 2,100.87 and 534.29

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Solution

The fourth proportional to 1,400.18, 2,100.87 and 534.29 is: 801.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.18 : 2,100.87 = 534.29 : x
  2. Step 2: Convert to fraction form
    1,400.18/2,100.87 = 534.29/x
  3. Step 3: Cross multiply
    1,400.18x = 2,100.87 × 534.29
  4. Step 4: Simplify right side
    1,400.18x = 1,122,479.08
  5. Step 5: Solve for x
    x = 1,122,479.08/1,400.18
  6. Step 6: Final answer
    x = 801.67

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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.