Home / 2,035.87-2,807.48-1,239.30

Finding the Fourth Proportional to 2,035.87, 2,807.48 and 1,239.30

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Solution

The fourth proportional to 2,035.87, 2,807.48 and 1,239.30 is: 1,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,035.87 : 2,807.48 = 1,239.30 : x
  2. Step 2: Convert to fraction form
    2,035.87/2,807.48 = 1,239.30/x
  3. Step 3: Cross multiply
    2,035.87x = 2,807.48 × 1,239.30
  4. Step 4: Simplify right side
    2,035.87x = 3,479,313.06
  5. Step 5: Solve for x
    x = 3,479,313.06/2,035.87
  6. Step 6: Final answer
    x = 1,709.01

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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.