Home / 6,507.24-8,980.10-3,988.36

Finding the Fourth Proportional to 6,507.24, 8,980.10 and 3,988.36

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Solution

The fourth proportional to 6,507.24, 8,980.10 and 3,988.36 is: 5,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507.24 : 8,980.10 = 3,988.36 : x
  2. Step 2: Convert to fraction form
    6,507.24/8,980.10 = 3,988.36/x
  3. Step 3: Cross multiply
    6,507.24x = 8,980.10 × 3,988.36
  4. Step 4: Simplify right side
    6,507.24x = 35,815,871.64
  5. Step 5: Solve for x
    x = 35,815,871.64/6,507.24
  6. Step 6: Final answer
    x = 5,504.00

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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.