Home / 5,318.40-7,339.74-3,548.88

Finding the Fourth Proportional to 5,318.40, 7,339.74 and 3,548.88

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Solution

The fourth proportional to 5,318.40, 7,339.74 and 3,548.88 is: 4,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.40 : 7,339.74 = 3,548.88 : x
  2. Step 2: Convert to fraction form
    5,318.40/7,339.74 = 3,548.88/x
  3. Step 3: Cross multiply
    5,318.40x = 7,339.74 × 3,548.88
  4. Step 4: Simplify right side
    5,318.40x = 26,047,856.49
  5. Step 5: Solve for x
    x = 26,047,856.49/5,318.40
  6. Step 6: Final answer
    x = 4,897.69

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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.