Home / 1,557.26-2,148.94-894.10

Finding the Fourth Proportional to 1,557.26, 2,148.94 and 894.10

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Solution

The fourth proportional to 1,557.26, 2,148.94 and 894.10 is: 1,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.26 : 2,148.94 = 894.10 : x
  2. Step 2: Convert to fraction form
    1,557.26/2,148.94 = 894.10/x
  3. Step 3: Cross multiply
    1,557.26x = 2,148.94 × 894.10
  4. Step 4: Simplify right side
    1,557.26x = 1,921,352.04
  5. Step 5: Solve for x
    x = 1,921,352.04/1,557.26
  6. Step 6: Final answer
    x = 1,233.80

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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.