Home / 5,880.30-8,115.24-3,887.40

Finding the Fourth Proportional to 5,880.30, 8,115.24 and 3,887.40

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Solution

The fourth proportional to 5,880.30, 8,115.24 and 3,887.40 is: 5,364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880.30 : 8,115.24 = 3,887.40 : x
  2. Step 2: Convert to fraction form
    5,880.30/8,115.24 = 3,887.40/x
  3. Step 3: Cross multiply
    5,880.30x = 8,115.24 × 3,887.40
  4. Step 4: Simplify right side
    5,880.30x = 31,547,183.98
  5. Step 5: Solve for x
    x = 31,547,183.98/5,880.30
  6. Step 6: Final answer
    x = 5,364.89

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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.