Home / 2,486.37-3,430.20-1,423.56

Finding the Fourth Proportional to 2,486.37, 3,430.20 and 1,423.56

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Solution

The fourth proportional to 2,486.37, 3,430.20 and 1,423.56 is: 1,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.37 : 3,430.20 = 1,423.56 : x
  2. Step 2: Convert to fraction form
    2,486.37/3,430.20 = 1,423.56/x
  3. Step 3: Cross multiply
    2,486.37x = 3,430.20 × 1,423.56
  4. Step 4: Simplify right side
    2,486.37x = 4,883,113.71
  5. Step 5: Solve for x
    x = 4,883,113.71/2,486.37
  6. Step 6: Final answer
    x = 1,963.95

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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.