Home / 7,870.94-10,861.64-4,334.06

Finding the Fourth Proportional to 7,870.94, 10,861.64 and 4,334.06

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Solution

The fourth proportional to 7,870.94, 10,861.64 and 4,334.06 is: 5,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.94 : 10,861.64 = 4,334.06 : x
  2. Step 2: Convert to fraction form
    7,870.94/10,861.64 = 4,334.06/x
  3. Step 3: Cross multiply
    7,870.94x = 10,861.64 × 4,334.06
  4. Step 4: Simplify right side
    7,870.94x = 47,074,961.47
  5. Step 5: Solve for x
    x = 47,074,961.47/7,870.94
  6. Step 6: Final answer
    x = 5,980.86

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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.