Home / 5,219-7,821.18-2,439.08

Finding the Fourth Proportional to 5,219, 7,821.18 and 2,439.08

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Solution

The fourth proportional to 5,219, 7,821.18 and 2,439.08 is: 3,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219 : 7,821.18 = 2,439.08 : x
  2. Step 2: Convert to fraction form
    5,219/7,821.18 = 2,439.08/x
  3. Step 3: Cross multiply
    5,219x = 7,821.18 × 2,439.08
  4. Step 4: Simplify right side
    5,219x = 19,076,483.71
  5. Step 5: Solve for x
    x = 19,076,483.71/5,219
  6. Step 6: Final answer
    x = 3,655.20

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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.