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Finding the Fourth Proportional to 2,340.10, 3,510.48 and 779.58

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Solution

The fourth proportional to 2,340.10, 3,510.48 and 779.58 is: 1,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.10 : 3,510.48 = 779.58 : x
  2. Step 2: Convert to fraction form
    2,340.10/3,510.48 = 779.58/x
  3. Step 3: Cross multiply
    2,340.10x = 3,510.48 × 779.58
  4. Step 4: Simplify right side
    2,340.10x = 2,736,700.00
  5. Step 5: Solve for x
    x = 2,736,700.00/2,340.10
  6. Step 6: Final answer
    x = 1,169.48

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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.