Home / 5,389.10-8,083.65-4,429.10

Finding the Fourth Proportional to 5,389.10, 8,083.65 and 4,429.10

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Solution

The fourth proportional to 5,389.10, 8,083.65 and 4,429.10 is: 6,643.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.10 : 8,083.65 = 4,429.10 : x
  2. Step 2: Convert to fraction form
    5,389.10/8,083.65 = 4,429.10/x
  3. Step 3: Cross multiply
    5,389.10x = 8,083.65 × 4,429.10
  4. Step 4: Simplify right side
    5,389.10x = 35,803,294.22
  5. Step 5: Solve for x
    x = 35,803,294.22/5,389.10
  6. Step 6: Final answer
    x = 6,643.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.