Home / 2,389.12-3,560.84-2,385.48

Finding the Fourth Proportional to 2,389.12, 3,560.84 and 2,385.48

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Solution

The fourth proportional to 2,389.12, 3,560.84 and 2,385.48 is: 3,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.12 : 3,560.84 = 2,385.48 : x
  2. Step 2: Convert to fraction form
    2,389.12/3,560.84 = 2,385.48/x
  3. Step 3: Cross multiply
    2,389.12x = 3,560.84 × 2,385.48
  4. Step 4: Simplify right side
    2,389.12x = 8,494,312.60
  5. Step 5: Solve for x
    x = 8,494,312.60/2,389.12
  6. Step 6: Final answer
    x = 3,555.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.