Home / 5,240.37-7,865.89-2,280.13

Finding the Fourth Proportional to 5,240.37, 7,865.89 and 2,280.13

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Solution

The fourth proportional to 5,240.37, 7,865.89 and 2,280.13 is: 3,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.37 : 7,865.89 = 2,280.13 : x
  2. Step 2: Convert to fraction form
    5,240.37/7,865.89 = 2,280.13/x
  3. Step 3: Cross multiply
    5,240.37x = 7,865.89 × 2,280.13
  4. Step 4: Simplify right side
    5,240.37x = 17,935,287.77
  5. Step 5: Solve for x
    x = 17,935,287.77/5,240.37
  6. Step 6: Final answer
    x = 3,422.52

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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.