Home / 2,650.37-3,657.68-1,531.58

Finding the Fourth Proportional to 2,650.37, 3,657.68 and 1,531.58

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Solution

The fourth proportional to 2,650.37, 3,657.68 and 1,531.58 is: 2,113.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.37 : 3,657.68 = 1,531.58 : x
  2. Step 2: Convert to fraction form
    2,650.37/3,657.68 = 1,531.58/x
  3. Step 3: Cross multiply
    2,650.37x = 3,657.68 × 1,531.58
  4. Step 4: Simplify right side
    2,650.37x = 5,602,044.50
  5. Step 5: Solve for x
    x = 5,602,044.50/2,650.37
  6. Step 6: Final answer
    x = 2,113.68

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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.