Home / 1,721.04-2,581.34-551.16

Finding the Fourth Proportional to 1,721.04, 2,581.34 and 551.16

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Solution

The fourth proportional to 1,721.04, 2,581.34 and 551.16 is: 826.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.04 : 2,581.34 = 551.16 : x
  2. Step 2: Convert to fraction form
    1,721.04/2,581.34 = 551.16/x
  3. Step 3: Cross multiply
    1,721.04x = 2,581.34 × 551.16
  4. Step 4: Simplify right side
    1,721.04x = 1,422,728.60
  5. Step 5: Solve for x
    x = 1,422,728.60/1,721.04
  6. Step 6: Final answer
    x = 826.67

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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.