Home / 5,219.05-7,828.61-1,323.46

Finding the Fourth Proportional to 5,219.05, 7,828.61 and 1,323.46

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Solution

The fourth proportional to 5,219.05, 7,828.61 and 1,323.46 is: 1,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.05 : 7,828.61 = 1,323.46 : x
  2. Step 2: Convert to fraction form
    5,219.05/7,828.61 = 1,323.46/x
  3. Step 3: Cross multiply
    5,219.05x = 7,828.61 × 1,323.46
  4. Step 4: Simplify right side
    5,219.05x = 10,360,826.00
  5. Step 5: Solve for x
    x = 10,360,826.00/5,219.05
  6. Step 6: Final answer
    x = 1,985.19

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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.