Home / 4,320.84-6,479.12-1,686.44

Finding the Fourth Proportional to 4,320.84, 6,479.12 and 1,686.44

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Solution

The fourth proportional to 4,320.84, 6,479.12 and 1,686.44 is: 2,528.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.84 : 6,479.12 = 1,686.44 : x
  2. Step 2: Convert to fraction form
    4,320.84/6,479.12 = 1,686.44/x
  3. Step 3: Cross multiply
    4,320.84x = 6,479.12 × 1,686.44
  4. Step 4: Simplify right side
    4,320.84x = 10,926,647.13
  5. Step 5: Solve for x
    x = 10,926,647.13/4,320.84
  6. Step 6: Final answer
    x = 2,528.82

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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.