Home / 2,485.73-3,430.32-1,366.70

Finding the Fourth Proportional to 2,485.73, 3,430.32 and 1,366.70

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Solution

The fourth proportional to 2,485.73, 3,430.32 and 1,366.70 is: 1,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.73 : 3,430.32 = 1,366.70 : x
  2. Step 2: Convert to fraction form
    2,485.73/3,430.32 = 1,366.70/x
  3. Step 3: Cross multiply
    2,485.73x = 3,430.32 × 1,366.70
  4. Step 4: Simplify right side
    2,485.73x = 4,688,218.34
  5. Step 5: Solve for x
    x = 4,688,218.34/2,485.73
  6. Step 6: Final answer
    x = 1,886.05

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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.