Home / 5,687.30-8,518.80-4,715.30

Finding the Fourth Proportional to 5,687.30, 8,518.80 and 4,715.30

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Solution

The fourth proportional to 5,687.30, 8,518.80 and 4,715.30 is: 7,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.30 : 8,518.80 = 4,715.30 : x
  2. Step 2: Convert to fraction form
    5,687.30/8,518.80 = 4,715.30/x
  3. Step 3: Cross multiply
    5,687.30x = 8,518.80 × 4,715.30
  4. Step 4: Simplify right side
    5,687.30x = 40,168,697.64
  5. Step 5: Solve for x
    x = 40,168,697.64/5,687.30
  6. Step 6: Final answer
    x = 7,062.88

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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.