Home / 3,116.68-4,300.80-1,937.72

Finding the Fourth Proportional to 3,116.68, 4,300.80 and 1,937.72

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Solution

The fourth proportional to 3,116.68, 4,300.80 and 1,937.72 is: 2,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.68 : 4,300.80 = 1,937.72 : x
  2. Step 2: Convert to fraction form
    3,116.68/4,300.80 = 1,937.72/x
  3. Step 3: Cross multiply
    3,116.68x = 4,300.80 × 1,937.72
  4. Step 4: Simplify right side
    3,116.68x = 8,333,746.18
  5. Step 5: Solve for x
    x = 8,333,746.18/3,116.68
  6. Step 6: Final answer
    x = 2,673.92

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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.