Home / 5,340.95-8,011.55-1,643.21

Finding the Fourth Proportional to 5,340.95, 8,011.55 and 1,643.21

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Solution

The fourth proportional to 5,340.95, 8,011.55 and 1,643.21 is: 2,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.95 : 8,011.55 = 1,643.21 : x
  2. Step 2: Convert to fraction form
    5,340.95/8,011.55 = 1,643.21/x
  3. Step 3: Cross multiply
    5,340.95x = 8,011.55 × 1,643.21
  4. Step 4: Simplify right side
    5,340.95x = 13,164,653.17
  5. Step 5: Solve for x
    x = 13,164,653.17/5,340.95
  6. Step 6: Final answer
    x = 2,464.85

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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.