Home / 2,378.58-3,542.78-2,271.98

Finding the Fourth Proportional to 2,378.58, 3,542.78 and 2,271.98

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Solution

The fourth proportional to 2,378.58, 3,542.78 and 2,271.98 is: 3,384.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.58 : 3,542.78 = 2,271.98 : x
  2. Step 2: Convert to fraction form
    2,378.58/3,542.78 = 2,271.98/x
  3. Step 3: Cross multiply
    2,378.58x = 3,542.78 × 2,271.98
  4. Step 4: Simplify right side
    2,378.58x = 8,049,113.27
  5. Step 5: Solve for x
    x = 8,049,113.27/2,378.58
  6. Step 6: Final answer
    x = 3,384.00

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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.