Home / 6,299.72-8,688.84-4,970.78

Finding the Fourth Proportional to 6,299.72, 8,688.84 and 4,970.78

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Solution

The fourth proportional to 6,299.72, 8,688.84 and 4,970.78 is: 6,855.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,299.72 : 8,688.84 = 4,970.78 : x
  2. Step 2: Convert to fraction form
    6,299.72/8,688.84 = 4,970.78/x
  3. Step 3: Cross multiply
    6,299.72x = 8,688.84 × 4,970.78
  4. Step 4: Simplify right side
    6,299.72x = 43,190,312.10
  5. Step 5: Solve for x
    x = 43,190,312.10/6,299.72
  6. Step 6: Final answer
    x = 6,855.91

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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.