Home / 1,560.36-2,153.49-897.18

Finding the Fourth Proportional to 1,560.36, 2,153.49 and 897.18

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Solution

The fourth proportional to 1,560.36, 2,153.49 and 897.18 is: 1,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.36 : 2,153.49 = 897.18 : x
  2. Step 2: Convert to fraction form
    1,560.36/2,153.49 = 897.18/x
  3. Step 3: Cross multiply
    1,560.36x = 2,153.49 × 897.18
  4. Step 4: Simplify right side
    1,560.36x = 1,932,056.72
  5. Step 5: Solve for x
    x = 1,932,056.72/1,560.36
  6. Step 6: Final answer
    x = 1,238.21

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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.