Home / 2,615.62-3,607.66-1,658.20

Finding the Fourth Proportional to 2,615.62, 3,607.66 and 1,658.20

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Solution

The fourth proportional to 2,615.62, 3,607.66 and 1,658.20 is: 2,287.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.62 : 3,607.66 = 1,658.20 : x
  2. Step 2: Convert to fraction form
    2,615.62/3,607.66 = 1,658.20/x
  3. Step 3: Cross multiply
    2,615.62x = 3,607.66 × 1,658.20
  4. Step 4: Simplify right side
    2,615.62x = 5,982,221.81
  5. Step 5: Solve for x
    x = 5,982,221.81/2,615.62
  6. Step 6: Final answer
    x = 2,287.11

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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.