Home / 3,125.22-4,312.78-1,708.93

Finding the Fourth Proportional to 3,125.22, 4,312.78 and 1,708.93

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Solution

The fourth proportional to 3,125.22, 4,312.78 and 1,708.93 is: 2,358.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.22 : 4,312.78 = 1,708.93 : x
  2. Step 2: Convert to fraction form
    3,125.22/4,312.78 = 1,708.93/x
  3. Step 3: Cross multiply
    3,125.22x = 4,312.78 × 1,708.93
  4. Step 4: Simplify right side
    3,125.22x = 7,370,240.24
  5. Step 5: Solve for x
    x = 7,370,240.24/3,125.22
  6. Step 6: Final answer
    x = 2,358.31

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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.