Home / 5,145.55-7,707.53-4,265.95

Finding the Fourth Proportional to 5,145.55, 7,707.53 and 4,265.95

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Solution

The fourth proportional to 5,145.55, 7,707.53 and 4,265.95 is: 6,389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.55 : 7,707.53 = 4,265.95 : x
  2. Step 2: Convert to fraction form
    5,145.55/7,707.53 = 4,265.95/x
  3. Step 3: Cross multiply
    5,145.55x = 7,707.53 × 4,265.95
  4. Step 4: Simplify right side
    5,145.55x = 32,879,937.60
  5. Step 5: Solve for x
    x = 32,879,937.60/5,145.55
  6. Step 6: Final answer
    x = 6,389.98

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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.