Home / 6,263.61-8,639.99-4,139.16

Finding the Fourth Proportional to 6,263.61, 8,639.99 and 4,139.16

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Solution

The fourth proportional to 6,263.61, 8,639.99 and 4,139.16 is: 5,709.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,263.61 : 8,639.99 = 4,139.16 : x
  2. Step 2: Convert to fraction form
    6,263.61/8,639.99 = 4,139.16/x
  3. Step 3: Cross multiply
    6,263.61x = 8,639.99 × 4,139.16
  4. Step 4: Simplify right side
    6,263.61x = 35,762,280.31
  5. Step 5: Solve for x
    x = 35,762,280.31/6,263.61
  6. Step 6: Final answer
    x = 5,709.53

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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.