Home / 5,470.80-8,205.18-1,574.28

Finding the Fourth Proportional to 5,470.80, 8,205.18 and 1,574.28

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Solution

The fourth proportional to 5,470.80, 8,205.18 and 1,574.28 is: 2,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.80 : 8,205.18 = 1,574.28 : x
  2. Step 2: Convert to fraction form
    5,470.80/8,205.18 = 1,574.28/x
  3. Step 3: Cross multiply
    5,470.80x = 8,205.18 × 1,574.28
  4. Step 4: Simplify right side
    5,470.80x = 12,917,250.77
  5. Step 5: Solve for x
    x = 12,917,250.77/5,470.80
  6. Step 6: Final answer
    x = 2,361.13

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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.