Home / 5,239.29-7,890.13-4,725.21

Finding the Fourth Proportional to 5,239.29, 7,890.13 and 4,725.21

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Solution

The fourth proportional to 5,239.29, 7,890.13 and 4,725.21 is: 7,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.29 : 7,890.13 = 4,725.21 : x
  2. Step 2: Convert to fraction form
    5,239.29/7,890.13 = 4,725.21/x
  3. Step 3: Cross multiply
    5,239.29x = 7,890.13 × 4,725.21
  4. Step 4: Simplify right side
    5,239.29x = 37,282,509.36
  5. Step 5: Solve for x
    x = 37,282,509.36/5,239.29
  6. Step 6: Final answer
    x = 7,115.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.