Home / 5,384.18-7,430.10-3,288.30

Finding the Fourth Proportional to 5,384.18, 7,430.10 and 3,288.30

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Solution

The fourth proportional to 5,384.18, 7,430.10 and 3,288.30 is: 4,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.18 : 7,430.10 = 3,288.30 : x
  2. Step 2: Convert to fraction form
    5,384.18/7,430.10 = 3,288.30/x
  3. Step 3: Cross multiply
    5,384.18x = 7,430.10 × 3,288.30
  4. Step 4: Simplify right side
    5,384.18x = 24,432,397.83
  5. Step 5: Solve for x
    x = 24,432,397.83/5,384.18
  6. Step 6: Final answer
    x = 4,537.81

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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.