Home / 3,124.64-4,312.04-1,708.30

Finding the Fourth Proportional to 3,124.64, 4,312.04 and 1,708.30

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Solution

The fourth proportional to 3,124.64, 4,312.04 and 1,708.30 is: 2,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.64 : 4,312.04 = 1,708.30 : x
  2. Step 2: Convert to fraction form
    3,124.64/4,312.04 = 1,708.30/x
  3. Step 3: Cross multiply
    3,124.64x = 4,312.04 × 1,708.30
  4. Step 4: Simplify right side
    3,124.64x = 7,366,267.67
  5. Step 5: Solve for x
    x = 7,366,267.67/3,124.64
  6. Step 6: Final answer
    x = 2,357.47

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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.