Home / 4,988.64-7,484.58-2,391.78

Finding the Fourth Proportional to 4,988.64, 7,484.58 and 2,391.78

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Solution

The fourth proportional to 4,988.64, 7,484.58 and 2,391.78 is: 3,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.64 : 7,484.58 = 2,391.78 : x
  2. Step 2: Convert to fraction form
    4,988.64/7,484.58 = 2,391.78/x
  3. Step 3: Cross multiply
    4,988.64x = 7,484.58 × 2,391.78
  4. Step 4: Simplify right side
    4,988.64x = 17,901,468.75
  5. Step 5: Solve for x
    x = 17,901,468.75/4,988.64
  6. Step 6: Final answer
    x = 3,588.45

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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.