Home / 5,384.32-7,430.98-3,146.76

Finding the Fourth Proportional to 5,384.32, 7,430.98 and 3,146.76

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Solution

The fourth proportional to 5,384.32, 7,430.98 and 3,146.76 is: 4,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.32 : 7,430.98 = 3,146.76 : x
  2. Step 2: Convert to fraction form
    5,384.32/7,430.98 = 3,146.76/x
  3. Step 3: Cross multiply
    5,384.32x = 7,430.98 × 3,146.76
  4. Step 4: Simplify right side
    5,384.32x = 23,383,510.62
  5. Step 5: Solve for x
    x = 23,383,510.62/5,384.32
  6. Step 6: Final answer
    x = 4,342.89

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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.