Home / 6,981.95-10,478.07-3,864.60

Finding the Fourth Proportional to 6,981.95, 10,478.07 and 3,864.60

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Solution

The fourth proportional to 6,981.95, 10,478.07 and 3,864.60 is: 5,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.95 : 10,478.07 = 3,864.60 : x
  2. Step 2: Convert to fraction form
    6,981.95/10,478.07 = 3,864.60/x
  3. Step 3: Cross multiply
    6,981.95x = 10,478.07 × 3,864.60
  4. Step 4: Simplify right side
    6,981.95x = 40,493,549.32
  5. Step 5: Solve for x
    x = 40,493,549.32/6,981.95
  6. Step 6: Final answer
    x = 5,799.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.