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Finding the Fourth Proportional to 3,124.70, 4,312.02 and 1,708.35

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Solution

The fourth proportional to 3,124.70, 4,312.02 and 1,708.35 is: 2,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.70 : 4,312.02 = 1,708.35 : x
  2. Step 2: Convert to fraction form
    3,124.70/4,312.02 = 1,708.35/x
  3. Step 3: Cross multiply
    3,124.70x = 4,312.02 × 1,708.35
  4. Step 4: Simplify right side
    3,124.70x = 7,366,439.37
  5. Step 5: Solve for x
    x = 7,366,439.37/3,124.70
  6. Step 6: Final answer
    x = 2,357.49

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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.