Home / 1,400.50-2,101.35-534.58

Finding the Fourth Proportional to 1,400.50, 2,101.35 and 534.58

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Solution

The fourth proportional to 1,400.50, 2,101.35 and 534.58 is: 802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.50 : 2,101.35 = 534.58 : x
  2. Step 2: Convert to fraction form
    1,400.50/2,101.35 = 534.58/x
  3. Step 3: Cross multiply
    1,400.50x = 2,101.35 × 534.58
  4. Step 4: Simplify right side
    1,400.50x = 1,123,339.68
  5. Step 5: Solve for x
    x = 1,123,339.68/1,400.50
  6. Step 6: Final answer
    x = 802.10

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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.