Home / 1,509.86-2,263.39-1,047.85

Finding the Fourth Proportional to 1,509.86, 2,263.39 and 1,047.85

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Solution

The fourth proportional to 1,509.86, 2,263.39 and 1,047.85 is: 1,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.86 : 2,263.39 = 1,047.85 : x
  2. Step 2: Convert to fraction form
    1,509.86/2,263.39 = 1,047.85/x
  3. Step 3: Cross multiply
    1,509.86x = 2,263.39 × 1,047.85
  4. Step 4: Simplify right side
    1,509.86x = 2,371,703.56
  5. Step 5: Solve for x
    x = 2,371,703.56/1,509.86
  6. Step 6: Final answer
    x = 1,570.81

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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.