Home / 4,785.16-6,603.80-2,689.42

Finding the Fourth Proportional to 4,785.16, 6,603.80 and 2,689.42

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Solution

The fourth proportional to 4,785.16, 6,603.80 and 2,689.42 is: 3,711.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.16 : 6,603.80 = 2,689.42 : x
  2. Step 2: Convert to fraction form
    4,785.16/6,603.80 = 2,689.42/x
  3. Step 3: Cross multiply
    4,785.16x = 6,603.80 × 2,689.42
  4. Step 4: Simplify right side
    4,785.16x = 17,760,391.80
  5. Step 5: Solve for x
    x = 17,760,391.80/4,785.16
  6. Step 6: Final answer
    x = 3,711.56

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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.