Home / 2,485.76-3,430.38-1,366.82

Finding the Fourth Proportional to 2,485.76, 3,430.38 and 1,366.82

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Solution

The fourth proportional to 2,485.76, 3,430.38 and 1,366.82 is: 1,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.76 : 3,430.38 = 1,366.82 : x
  2. Step 2: Convert to fraction form
    2,485.76/3,430.38 = 1,366.82/x
  3. Step 3: Cross multiply
    2,485.76x = 3,430.38 × 1,366.82
  4. Step 4: Simplify right side
    2,485.76x = 4,688,711.99
  5. Step 5: Solve for x
    x = 4,688,711.99/2,485.76
  6. Step 6: Final answer
    x = 1,886.23

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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.