Home / 5,289.30-7,298.91-2,931.39

Finding the Fourth Proportional to 5,289.30, 7,298.91 and 2,931.39

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Solution

The fourth proportional to 5,289.30, 7,298.91 and 2,931.39 is: 4,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.30 : 7,298.91 = 2,931.39 : x
  2. Step 2: Convert to fraction form
    5,289.30/7,298.91 = 2,931.39/x
  3. Step 3: Cross multiply
    5,289.30x = 7,298.91 × 2,931.39
  4. Step 4: Simplify right side
    5,289.30x = 21,395,951.78
  5. Step 5: Solve for x
    x = 21,395,951.78/5,289.30
  6. Step 6: Final answer
    x = 4,045.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.