Home / 5,031.60-7,548.71-1,911.66

Finding the Fourth Proportional to 5,031.60, 7,548.71 and 1,911.66

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Solution

The fourth proportional to 5,031.60, 7,548.71 and 1,911.66 is: 2,867.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.60 : 7,548.71 = 1,911.66 : x
  2. Step 2: Convert to fraction form
    5,031.60/7,548.71 = 1,911.66/x
  3. Step 3: Cross multiply
    5,031.60x = 7,548.71 × 1,911.66
  4. Step 4: Simplify right side
    5,031.60x = 14,430,557.40
  5. Step 5: Solve for x
    x = 14,430,557.40/5,031.60
  6. Step 6: Final answer
    x = 2,867.99

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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.