Home / 2,640.98-3,651.50-2,312.93

Finding the Fourth Proportional to 2,640.98, 3,651.50 and 2,312.93

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Solution

The fourth proportional to 2,640.98, 3,651.50 and 2,312.93 is: 3,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.98 : 3,651.50 = 2,312.93 : x
  2. Step 2: Convert to fraction form
    2,640.98/3,651.50 = 2,312.93/x
  3. Step 3: Cross multiply
    2,640.98x = 3,651.50 × 2,312.93
  4. Step 4: Simplify right side
    2,640.98x = 8,445,651.42
  5. Step 5: Solve for x
    x = 8,445,651.42/2,640.98
  6. Step 6: Final answer
    x = 3,197.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.