Home / 5,389.20-7,444.08-4,406.40

Finding the Fourth Proportional to 5,389.20, 7,444.08 and 4,406.40

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Solution

The fourth proportional to 5,389.20, 7,444.08 and 4,406.40 is: 6,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.20 : 7,444.08 = 4,406.40 : x
  2. Step 2: Convert to fraction form
    5,389.20/7,444.08 = 4,406.40/x
  3. Step 3: Cross multiply
    5,389.20x = 7,444.08 × 4,406.40
  4. Step 4: Simplify right side
    5,389.20x = 32,801,594.11
  5. Step 5: Solve for x
    x = 32,801,594.11/5,389.20
  6. Step 6: Final answer
    x = 6,086.54

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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.