Home / 2,865.30-3,953.79-1,746.30

Finding the Fourth Proportional to 2,865.30, 3,953.79 and 1,746.30

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Solution

The fourth proportional to 2,865.30, 3,953.79 and 1,746.30 is: 2,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.30 : 3,953.79 = 1,746.30 : x
  2. Step 2: Convert to fraction form
    2,865.30/3,953.79 = 1,746.30/x
  3. Step 3: Cross multiply
    2,865.30x = 3,953.79 × 1,746.30
  4. Step 4: Simplify right side
    2,865.30x = 6,904,503.48
  5. Step 5: Solve for x
    x = 6,904,503.48/2,865.30
  6. Step 6: Final answer
    x = 2,409.70

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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.