Home / 5,386.58-8,080.04-1,490.66

Finding the Fourth Proportional to 5,386.58, 8,080.04 and 1,490.66

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Solution

The fourth proportional to 5,386.58, 8,080.04 and 1,490.66 is: 2,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.58 : 8,080.04 = 1,490.66 : x
  2. Step 2: Convert to fraction form
    5,386.58/8,080.04 = 1,490.66/x
  3. Step 3: Cross multiply
    5,386.58x = 8,080.04 × 1,490.66
  4. Step 4: Simplify right side
    5,386.58x = 12,044,555.75
  5. Step 5: Solve for x
    x = 12,044,555.75/5,386.58
  6. Step 6: Final answer
    x = 2,236.03

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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.