Home / 1,532.71-2,100.41-1,385.09

Finding the Fourth Proportional to 1,532.71, 2,100.41 and 1,385.09

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Solution

The fourth proportional to 1,532.71, 2,100.41 and 1,385.09 is: 1,898.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.71 : 2,100.41 = 1,385.09 : x
  2. Step 2: Convert to fraction form
    1,532.71/2,100.41 = 1,385.09/x
  3. Step 3: Cross multiply
    1,532.71x = 2,100.41 × 1,385.09
  4. Step 4: Simplify right side
    1,532.71x = 2,909,252.53
  5. Step 5: Solve for x
    x = 2,909,252.53/1,532.71
  6. Step 6: Final answer
    x = 1,898.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.