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Finding the Fourth Proportional to 2,950.71, 4,070.18 and 1,754.90

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Solution

The fourth proportional to 2,950.71, 4,070.18 and 1,754.90 is: 2,420.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.71 : 4,070.18 = 1,754.90 : x
  2. Step 2: Convert to fraction form
    2,950.71/4,070.18 = 1,754.90/x
  3. Step 3: Cross multiply
    2,950.71x = 4,070.18 × 1,754.90
  4. Step 4: Simplify right side
    2,950.71x = 7,142,729.76
  5. Step 5: Solve for x
    x = 7,142,729.76/2,950.71
  6. Step 6: Final answer
    x = 2,420.68

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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.