Home / 5,384.10-8,075.55-1,488

Finding the Fourth Proportional to 5,384.10, 8,075.55 and 1,488

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Solution

The fourth proportional to 5,384.10, 8,075.55 and 1,488 is: 2,231.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.10 : 8,075.55 = 1,488 : x
  2. Step 2: Convert to fraction form
    5,384.10/8,075.55 = 1,488/x
  3. Step 3: Cross multiply
    5,384.10x = 8,075.55 × 1,488
  4. Step 4: Simplify right side
    5,384.10x = 12,016,418.40
  5. Step 5: Solve for x
    x = 12,016,418.40/5,384.10
  6. Step 6: Final answer
    x = 2,231.83

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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.