Home / 7,639.64-10,541.09-4,990.94

Finding the Fourth Proportional to 7,639.64, 10,541.09 and 4,990.94

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Solution

The fourth proportional to 7,639.64, 10,541.09 and 4,990.94 is: 6,886.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.64 : 10,541.09 = 4,990.94 : x
  2. Step 2: Convert to fraction form
    7,639.64/10,541.09 = 4,990.94/x
  3. Step 3: Cross multiply
    7,639.64x = 10,541.09 × 4,990.94
  4. Step 4: Simplify right side
    7,639.64x = 52,609,907.50
  5. Step 5: Solve for x
    x = 52,609,907.50/7,639.64
  6. Step 6: Final answer
    x = 6,886.44

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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.