Home / 1,721.04-2,581.55-488.45

Finding the Fourth Proportional to 1,721.04, 2,581.55 and 488.45

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Solution

The fourth proportional to 1,721.04, 2,581.55 and 488.45 is: 732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.04 : 2,581.55 = 488.45 : x
  2. Step 2: Convert to fraction form
    1,721.04/2,581.55 = 488.45/x
  3. Step 3: Cross multiply
    1,721.04x = 2,581.55 × 488.45
  4. Step 4: Simplify right side
    1,721.04x = 1,260,956.58
  5. Step 5: Solve for x
    x = 1,260,956.58/1,721.04
  6. Step 6: Final answer
    x = 732.67

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1.5x scale

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.