Home / 2,106.90-3,153.33-1,585.64

Finding the Fourth Proportional to 2,106.90, 3,153.33 and 1,585.64

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Solution

The fourth proportional to 2,106.90, 3,153.33 and 1,585.64 is: 2,373.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.90 : 3,153.33 = 1,585.64 : x
  2. Step 2: Convert to fraction form
    2,106.90/3,153.33 = 1,585.64/x
  3. Step 3: Cross multiply
    2,106.90x = 3,153.33 × 1,585.64
  4. Step 4: Simplify right side
    2,106.90x = 5,000,046.18
  5. Step 5: Solve for x
    x = 5,000,046.18/2,106.90
  6. Step 6: Final answer
    x = 2,373.18

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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.