Home / 5,347.60-7,379.91-2,989.72

Finding the Fourth Proportional to 5,347.60, 7,379.91 and 2,989.72

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Solution

The fourth proportional to 5,347.60, 7,379.91 and 2,989.72 is: 4,125.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.60 : 7,379.91 = 2,989.72 : x
  2. Step 2: Convert to fraction form
    5,347.60/7,379.91 = 2,989.72/x
  3. Step 3: Cross multiply
    5,347.60x = 7,379.91 × 2,989.72
  4. Step 4: Simplify right side
    5,347.60x = 22,063,827.63
  5. Step 5: Solve for x
    x = 22,063,827.63/5,347.60
  6. Step 6: Final answer
    x = 4,125.93

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1.5x scale

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.