Home / 7,326.46-10,985.23-2,878.80

Finding the Fourth Proportional to 7,326.46, 10,985.23 and 2,878.80

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Solution

The fourth proportional to 7,326.46, 10,985.23 and 2,878.80 is: 4,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.46 : 10,985.23 = 2,878.80 : x
  2. Step 2: Convert to fraction form
    7,326.46/10,985.23 = 2,878.80/x
  3. Step 3: Cross multiply
    7,326.46x = 10,985.23 × 2,878.80
  4. Step 4: Simplify right side
    7,326.46x = 31,624,280.12
  5. Step 5: Solve for x
    x = 31,624,280.12/7,326.46
  6. Step 6: Final answer
    x = 4,316.45

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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.