Home / 7,949.34-10,970.20-4,412.78

Finding the Fourth Proportional to 7,949.34, 10,970.20 and 4,412.78

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Solution

The fourth proportional to 7,949.34, 10,970.20 and 4,412.78 is: 6,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.34 : 10,970.20 = 4,412.78 : x
  2. Step 2: Convert to fraction form
    7,949.34/10,970.20 = 4,412.78/x
  3. Step 3: Cross multiply
    7,949.34x = 10,970.20 × 4,412.78
  4. Step 4: Simplify right side
    7,949.34x = 48,409,070.96
  5. Step 5: Solve for x
    x = 48,409,070.96/7,949.34
  6. Step 6: Final answer
    x = 6,089.70

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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.