Home / 1,646.68-2,479.76-1,432.84

Finding the Fourth Proportional to 1,646.68, 2,479.76 and 1,432.84

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Solution

The fourth proportional to 1,646.68, 2,479.76 and 1,432.84 is: 2,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.68 : 2,479.76 = 1,432.84 : x
  2. Step 2: Convert to fraction form
    1,646.68/2,479.76 = 1,432.84/x
  3. Step 3: Cross multiply
    1,646.68x = 2,479.76 × 1,432.84
  4. Step 4: Simplify right side
    1,646.68x = 3,553,099.32
  5. Step 5: Solve for x
    x = 3,553,099.32/1,646.68
  6. Step 6: Final answer
    x = 2,157.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.