Home / 2,485.63-3,430.09-1,366.57

Finding the Fourth Proportional to 2,485.63, 3,430.09 and 1,366.57

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Solution

The fourth proportional to 2,485.63, 3,430.09 and 1,366.57 is: 1,885.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.63 : 3,430.09 = 1,366.57 : x
  2. Step 2: Convert to fraction form
    2,485.63/3,430.09 = 1,366.57/x
  3. Step 3: Cross multiply
    2,485.63x = 3,430.09 × 1,366.57
  4. Step 4: Simplify right side
    2,485.63x = 4,687,440.94
  5. Step 5: Solve for x
    x = 4,687,440.94/2,485.63
  6. Step 6: Final answer
    x = 1,885.82

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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.