Home / 1,625.45-2,420.62-1,570.73

Finding the Fourth Proportional to 1,625.45, 2,420.62 and 1,570.73

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Solution

The fourth proportional to 1,625.45, 2,420.62 and 1,570.73 is: 2,339.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.45 : 2,420.62 = 1,570.73 : x
  2. Step 2: Convert to fraction form
    1,625.45/2,420.62 = 1,570.73/x
  3. Step 3: Cross multiply
    1,625.45x = 2,420.62 × 1,570.73
  4. Step 4: Simplify right side
    1,625.45x = 3,802,140.45
  5. Step 5: Solve for x
    x = 3,802,140.45/1,625.45
  6. Step 6: Final answer
    x = 2,339.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.