Home / 1,929.90-2,663.28-1,487.01

Finding the Fourth Proportional to 1,929.90, 2,663.28 and 1,487.01

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Solution

The fourth proportional to 1,929.90, 2,663.28 and 1,487.01 is: 2,052.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.90 : 2,663.28 = 1,487.01 : x
  2. Step 2: Convert to fraction form
    1,929.90/2,663.28 = 1,487.01/x
  3. Step 3: Cross multiply
    1,929.90x = 2,663.28 × 1,487.01
  4. Step 4: Simplify right side
    1,929.90x = 3,960,323.99
  5. Step 5: Solve for x
    x = 3,960,323.99/1,929.90
  6. Step 6: Final answer
    x = 2,052.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.