Home / 5,215.04-7,816.80-1,749.68

Finding the Fourth Proportional to 5,215.04, 7,816.80 and 1,749.68

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Solution

The fourth proportional to 5,215.04, 7,816.80 and 1,749.68 is: 2,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.04 : 7,816.80 = 1,749.68 : x
  2. Step 2: Convert to fraction form
    5,215.04/7,816.80 = 1,749.68/x
  3. Step 3: Cross multiply
    5,215.04x = 7,816.80 × 1,749.68
  4. Step 4: Simplify right side
    5,215.04x = 13,676,898.62
  5. Step 5: Solve for x
    x = 13,676,898.62/5,215.04
  6. Step 6: Final answer
    x = 2,622.59

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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.