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Finding the Fourth Proportional to 2,678.94, 3,697.11 and 1,500.39

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Solution

The fourth proportional to 2,678.94, 3,697.11 and 1,500.39 is: 2,070.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.94 : 3,697.11 = 1,500.39 : x
  2. Step 2: Convert to fraction form
    2,678.94/3,697.11 = 1,500.39/x
  3. Step 3: Cross multiply
    2,678.94x = 3,697.11 × 1,500.39
  4. Step 4: Simplify right side
    2,678.94x = 5,547,106.87
  5. Step 5: Solve for x
    x = 5,547,106.87/2,678.94
  6. Step 6: Final answer
    x = 2,070.63

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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.