Home / 1,247.00-1,870.70-1,015.34

Finding the Fourth Proportional to 1,247.00, 1,870.70 and 1,015.34

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Solution

The fourth proportional to 1,247.00, 1,870.70 and 1,015.34 is: 1,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.00 : 1,870.70 = 1,015.34 : x
  2. Step 2: Convert to fraction form
    1,247.00/1,870.70 = 1,015.34/x
  3. Step 3: Cross multiply
    1,247.00x = 1,870.70 × 1,015.34
  4. Step 4: Simplify right side
    1,247.00x = 1,899,382.11
  5. Step 5: Solve for x
    x = 1,899,382.11/1,247.00
  6. Step 6: Final answer
    x = 1,523.17

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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.