Home / 5,210.58-7,816.98-2,990.43

Finding the Fourth Proportional to 5,210.58, 7,816.98 and 2,990.43

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Solution

The fourth proportional to 5,210.58, 7,816.98 and 2,990.43 is: 4,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.58 : 7,816.98 = 2,990.43 : x
  2. Step 2: Convert to fraction form
    5,210.58/7,816.98 = 2,990.43/x
  3. Step 3: Cross multiply
    5,210.58x = 7,816.98 × 2,990.43
  4. Step 4: Simplify right side
    5,210.58x = 23,376,158.52
  5. Step 5: Solve for x
    x = 23,376,158.52/5,210.58
  6. Step 6: Final answer
    x = 4,486.29

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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.