Home / 7,157.99-9,882.45-4,771.32

Finding the Fourth Proportional to 7,157.99, 9,882.45 and 4,771.32

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Solution

The fourth proportional to 7,157.99, 9,882.45 and 4,771.32 is: 6,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.99 : 9,882.45 = 4,771.32 : x
  2. Step 2: Convert to fraction form
    7,157.99/9,882.45 = 4,771.32/x
  3. Step 3: Cross multiply
    7,157.99x = 9,882.45 × 4,771.32
  4. Step 4: Simplify right side
    7,157.99x = 47,152,331.33
  5. Step 5: Solve for x
    x = 47,152,331.33/7,157.99
  6. Step 6: Final answer
    x = 6,587.37

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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.