Home / 5,900.61-8,139.78-4,782.81

Finding the Fourth Proportional to 5,900.61, 8,139.78 and 4,782.81

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Solution

The fourth proportional to 5,900.61, 8,139.78 and 4,782.81 is: 6,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,900.61 : 8,139.78 = 4,782.81 : x
  2. Step 2: Convert to fraction form
    5,900.61/8,139.78 = 4,782.81/x
  3. Step 3: Cross multiply
    5,900.61x = 8,139.78 × 4,782.81
  4. Step 4: Simplify right side
    5,900.61x = 38,931,021.18
  5. Step 5: Solve for x
    x = 38,931,021.18/5,900.61
  6. Step 6: Final answer
    x = 6,597.80

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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.