Home / 5,815.12-8,004.72-5,058.40

Finding the Fourth Proportional to 5,815.12, 8,004.72 and 5,058.40

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Solution

The fourth proportional to 5,815.12, 8,004.72 and 5,058.40 is: 6,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.12 : 8,004.72 = 5,058.40 : x
  2. Step 2: Convert to fraction form
    5,815.12/8,004.72 = 5,058.40/x
  3. Step 3: Cross multiply
    5,815.12x = 8,004.72 × 5,058.40
  4. Step 4: Simplify right side
    5,815.12x = 40,491,075.65
  5. Step 5: Solve for x
    x = 40,491,075.65/5,815.12
  6. Step 6: Final answer
    x = 6,963.07

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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.