Home / 2,431.67-3,357.05-1,487.70

Finding the Fourth Proportional to 2,431.67, 3,357.05 and 1,487.70

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Solution

The fourth proportional to 2,431.67, 3,357.05 and 1,487.70 is: 2,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.67 : 3,357.05 = 1,487.70 : x
  2. Step 2: Convert to fraction form
    2,431.67/3,357.05 = 1,487.70/x
  3. Step 3: Cross multiply
    2,431.67x = 3,357.05 × 1,487.70
  4. Step 4: Simplify right side
    2,431.67x = 4,994,275.85
  5. Step 5: Solve for x
    x = 4,994,275.85/2,431.67
  6. Step 6: Final answer
    x = 2,053.85

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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.