Home / 4,885.91-7,328.76-1,188.16

Finding the Fourth Proportional to 4,885.91, 7,328.76 and 1,188.16

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Solution

The fourth proportional to 4,885.91, 7,328.76 and 1,188.16 is: 1,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.91 : 7,328.76 = 1,188.16 : x
  2. Step 2: Convert to fraction form
    4,885.91/7,328.76 = 1,188.16/x
  3. Step 3: Cross multiply
    4,885.91x = 7,328.76 × 1,188.16
  4. Step 4: Simplify right side
    4,885.91x = 8,707,739.48
  5. Step 5: Solve for x
    x = 8,707,739.48/4,885.91
  6. Step 6: Final answer
    x = 1,782.21

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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.