Home / 1,560.41-2,153.67-1,435.87

Finding the Fourth Proportional to 1,560.41, 2,153.67 and 1,435.87

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Solution

The fourth proportional to 1,560.41, 2,153.67 and 1,435.87 is: 1,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.41 : 2,153.67 = 1,435.87 : x
  2. Step 2: Convert to fraction form
    1,560.41/2,153.67 = 1,435.87/x
  3. Step 3: Cross multiply
    1,560.41x = 2,153.67 × 1,435.87
  4. Step 4: Simplify right side
    1,560.41x = 3,092,379.37
  5. Step 5: Solve for x
    x = 3,092,379.37/1,560.41
  6. Step 6: Final answer
    x = 1,981.78

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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.