Home / 5,247.61-7,868.02-2,783.59

Finding the Fourth Proportional to 5,247.61, 7,868.02 and 2,783.59

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Solution

The fourth proportional to 5,247.61, 7,868.02 and 2,783.59 is: 4,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.61 : 7,868.02 = 2,783.59 : x
  2. Step 2: Convert to fraction form
    5,247.61/7,868.02 = 2,783.59/x
  3. Step 3: Cross multiply
    5,247.61x = 7,868.02 × 2,783.59
  4. Step 4: Simplify right side
    5,247.61x = 21,901,341.79
  5. Step 5: Solve for x
    x = 21,901,341.79/5,247.61
  6. Step 6: Final answer
    x = 4,173.58

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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.