Home / 2,390.98-3,589.49-2,280.19

Finding the Fourth Proportional to 2,390.98, 3,589.49 and 2,280.19

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Solution

The fourth proportional to 2,390.98, 3,589.49 and 2,280.19 is: 3,423.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.98 : 3,589.49 = 2,280.19 : x
  2. Step 2: Convert to fraction form
    2,390.98/3,589.49 = 2,280.19/x
  3. Step 3: Cross multiply
    2,390.98x = 3,589.49 × 2,280.19
  4. Step 4: Simplify right side
    2,390.98x = 8,184,719.20
  5. Step 5: Solve for x
    x = 8,184,719.20/2,390.98
  6. Step 6: Final answer
    x = 3,423.17

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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.