Home / 3,407.13-4,701.97-1,915.02

Finding the Fourth Proportional to 3,407.13, 4,701.97 and 1,915.02

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Solution

The fourth proportional to 3,407.13, 4,701.97 and 1,915.02 is: 2,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.13 : 4,701.97 = 1,915.02 : x
  2. Step 2: Convert to fraction form
    3,407.13/4,701.97 = 1,915.02/x
  3. Step 3: Cross multiply
    3,407.13x = 4,701.97 × 1,915.02
  4. Step 4: Simplify right side
    3,407.13x = 9,004,366.59
  5. Step 5: Solve for x
    x = 9,004,366.59/3,407.13
  6. Step 6: Final answer
    x = 2,642.80

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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.