Home / 5,439.21-7,501.91-3,315.09

Finding the Fourth Proportional to 5,439.21, 7,501.91 and 3,315.09

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Solution

The fourth proportional to 5,439.21, 7,501.91 and 3,315.09 is: 4,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.21 : 7,501.91 = 3,315.09 : x
  2. Step 2: Convert to fraction form
    5,439.21/7,501.91 = 3,315.09/x
  3. Step 3: Cross multiply
    5,439.21x = 7,501.91 × 3,315.09
  4. Step 4: Simplify right side
    5,439.21x = 24,869,490.25
  5. Step 5: Solve for x
    x = 24,869,490.25/5,439.21
  6. Step 6: Final answer
    x = 4,572.26

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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.