Home / 3,079.38-4,615.40-1,617.78

Finding the Fourth Proportional to 3,079.38, 4,615.40 and 1,617.78

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Solution

The fourth proportional to 3,079.38, 4,615.40 and 1,617.78 is: 2,424.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.38 : 4,615.40 = 1,617.78 : x
  2. Step 2: Convert to fraction form
    3,079.38/4,615.40 = 1,617.78/x
  3. Step 3: Cross multiply
    3,079.38x = 4,615.40 × 1,617.78
  4. Step 4: Simplify right side
    3,079.38x = 7,466,701.81
  5. Step 5: Solve for x
    x = 7,466,701.81/3,079.38
  6. Step 6: Final answer
    x = 2,424.74

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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.