Home / 2,847.67-3,929.68-1,588.70

Finding the Fourth Proportional to 2,847.67, 3,929.68 and 1,588.70

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Solution

The fourth proportional to 2,847.67, 3,929.68 and 1,588.70 is: 2,192.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.67 : 3,929.68 = 1,588.70 : x
  2. Step 2: Convert to fraction form
    2,847.67/3,929.68 = 1,588.70/x
  3. Step 3: Cross multiply
    2,847.67x = 3,929.68 × 1,588.70
  4. Step 4: Simplify right side
    2,847.67x = 6,243,074.67
  5. Step 5: Solve for x
    x = 6,243,074.67/2,847.67
  6. Step 6: Final answer
    x = 2,192.35

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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.