Home / 5,488.14-8,230.16-1,977.20

Finding the Fourth Proportional to 5,488.14, 8,230.16 and 1,977.20

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Solution

The fourth proportional to 5,488.14, 8,230.16 and 1,977.20 is: 2,965.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.14 : 8,230.16 = 1,977.20 : x
  2. Step 2: Convert to fraction form
    5,488.14/8,230.16 = 1,977.20/x
  3. Step 3: Cross multiply
    5,488.14x = 8,230.16 × 1,977.20
  4. Step 4: Simplify right side
    5,488.14x = 16,272,621.32
  5. Step 5: Solve for x
    x = 16,272,621.32/5,488.14
  6. Step 6: Final answer
    x = 2,965.05

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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.