Home / 1,607.60-2,217.84-1,188.92

Finding the Fourth Proportional to 1,607.60, 2,217.84 and 1,188.92

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Solution

The fourth proportional to 1,607.60, 2,217.84 and 1,188.92 is: 1,640.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.60 : 2,217.84 = 1,188.92 : x
  2. Step 2: Convert to fraction form
    1,607.60/2,217.84 = 1,188.92/x
  3. Step 3: Cross multiply
    1,607.60x = 2,217.84 × 1,188.92
  4. Step 4: Simplify right side
    1,607.60x = 2,636,834.33
  5. Step 5: Solve for x
    x = 2,636,834.33/1,607.60
  6. Step 6: Final answer
    x = 1,640.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.